Square Root And Cube Root Related MCQs For Job's Test Preparation

1 - ( √625 / 11 * 14/√25 * 11/√196 ) is equal to :





5

2 - (√1156/√289) = ?/12.5





25

3 - (√24 + √216) / √96 = ?





2

4 - (√32 + √48) / (√8 + √12) = ?





2

5 - (√5 - √3)/ (√5 + √3) is equal to ?





(4 - √15)

6 - (√9216 - √1640.25) × 1/2 = ?





28

7 - (0.04)³ = ?





6.4e-05

8 - (72)2 ÷ 3√46650 = ?





144

9 - ? / √2.25 = 550





825

10 - ?/√196 = 5





70

11 - √ ? / 200 = 0.02 ?





16

12 - √ 0.000256 × ? = 1.6





10000

13 - √ 0.0576 × ? = 0.24





1

14 - √ 248 + √ 16





16

15 - √ 248 + √ 16 248+16





16

16 - √(0.324 x 0.081 x 4.624) / (1.5625 x 0.0289 x 72.9 x 64) = ?





0.024

17 - √(1.21 x 0.9) / (1.1 x 0.11) = ?





3

18 - √(12 + √12 + √12 + ... = ?





4

19 - √.00059049 = ?





0.0243

20 - √.04





0.2

21 - √.289/.00121 = ?





170/11

22 - √0.0009 + √0.01 = ?





0.3

23 - √0.01 + √0.0064 = ?





0.3

24 - √0.04 x 0.4 x a = 0.4 x 0.04 x √b, then the value of a/b is ?





0.016

25 - √0.289/0.00121 = ?





170/11

26 - √10 x √15 ?





5√6

27 - √106.09 = ?





10.3

28 - √1290/13 × 14/√40 = ?





138

29 - √1296 / ? = ? / 2.25





9

30 - √176 + √2401 = ?





15

31 - √197 + √365 = ?





33

32 - √243/&radic3 = ?





9

33 - √248 + √(52+ √144)





16

34 - √25/15625 = √?/30625





49

35 - √288 / √128





44987

36 - √29929 = ?





173

37 - √3000 × √30 = ?





300

38 - √324/1.5 = ?/ √256





192

39 - √36.1 / 102.4 = ?





19/32

40 - √360 + √120 = ?





30

41 - √4/3 - √3/4 = ?





1/2√3

42 - √4375 / √7 = ?





25

43 - √4890 = ?





70

44 - √6550 ÷ 3.005 × 4.99901 = ?





135

45 - √727.99950 + (5.1961)2 = ? ÷ 2/10.7960





10

46 - 0.0169 x ? = 1.3





100

47 - 1.5625 = ?





1.25

48 - 1/ (√9 - √8) = ?





(3 + 2√2)

49 - 112/√196 x √579/12 x √256/8 = ?





32

50 - 140 √ ? ? +315 =1015





25

51 - 140√? + 315 = 1015





25

52 - 1872/ √? = 234





64

53 - 2025 plants are to be planted in a garden in such a way that each row contains asmany plants as the number of rows. Find the number of rows and the number of plants in each row.





45 row & 45 Plants in each row

54 - 250 / √? = 10





625

55 - 3√9260 × √1444 = ?





798

56 - 3√941190 = ?





98

57 - A certain number of people agree to subscribe as many rupees each as a there are subscribers. The whole subscription is 2582449 rupees. Find the number of subscribers.





1607

58 - A General wishes to draw up his 36581 soldiers in the form of a solid square. After arranging them , he found that some of them are left over . How many are left ?





100

59 - A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 22.09, the number of members in the group is ?





47

60 - A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:





77

61 - A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 98.01, the number of the member is the group is:





99

62 - A group of students decided to collect as many paise from each member of the group as is the number of members. If the total collection amounts to Rs. 59.29, the number of members in the group is





57

63 - A man plants 49284 apple trees in his garden and arranges them so that there are as many rows as there are apples trees in each row. The number of rows is





222

64 - √ 50 x√ 98 is equal to





70

65 - √2 = 1.4142, find the value of √2 / (2 + √2).





0.4142

66 - By what least number 675 be multiplied to obtain a number which is a perfect cube ?





5

67 - By what least number 675 be multiplied to obtain a number which is a perfect cube?





5

68 - By what least number must 21600 be multiplied to make it a perfect cube ?





10

69 - Cube root of 4096 is





16

70 - Determine k so that k+2,4k-6 and 4k-2 are the three consecutive terms of an A.P





8

71 - Determine the rth term of an A.P. whose 6th term is 12 and 8th term is 22





5r-18

72 - Evaluate √0.8 correct up to two places of decimal.





0.89

73 - Evaluate √11025





105

74 - Evaluate √2 correct up to two places of decimal.





1.414

75 - Evaluate √3 correct up to 3 places of decimal.





1.732

76 - Evaluate √4356





66

77 - Evaluate √5329 using long-division method.





73

78 - Evaluate the cube root: ∛216





6

79 - Evaluate the cube root: ∛2744





14

80 - Evaluate the cube root: ∛343





7

81 - Evaluate: {∛(216/2197)





45090

82 - Evaluate: √0.4225





0.65

83 - Evaluate: √10609.





103

84 - Evaluate: √16384.





128

85 - Evaluate: √42.25





6.5

86 - Evaluate: √441/961.





21/31

87 - Evaluate: √6.4009





2.53

88 - Evaluate: √66.4225





8.15

89 - Evaluate: √66049





257

90 - Evaluate: ∛(125 × 64).





21

91 - Evaluate: ∛(-125/512)





-0.625

92 - Evaluate: ∛(27 × 64).





12

93 - Evaluate: ∛[216 × (-343)].





-42

94 - Evaluate: √(9.5 * 0.0085 * 18.9) / (0.0017 * 1.9 * 0.021)





160

95 - Find cube: (0.06) ³





27/125000

96 - Find cube: (2.5)³





125/27

97 - Find cube: (-7)³





-343

98 - Find fhe least square number which is exactly divisible by 10, 12, I5 and 18.





900

99 - Find out if the following are perfect cubes : 250





It is not a perfect cube

100 - Find out the square root of 1764.





42

101 - Find out the value of √45 × √20.





30

102 - Find the 100th term. if the first term is 4 and the common difference is 7?





697

103 - Find the 10th term of -5,-8,-11,......





-32

104 - Find the 32nd term in the following series 3,7,11,.......





127

105 - Find the 35th term if the first term is 8 and common difference is 1.5?





59

106 - Find the cost of erecting a fence around a square field whose area is 9 hectares if fencing costs $ 3.50 per metre.





4200

107 - Find the cube root of (-1000).





-10

108 - Find the cube root of 19683.





27

109 - Find the cube root of 5.832.





1.8

110 - Find the greatest number of four digits which is a perfect square.





9801

111 - Find the least number by which 1470 must be divided to get a number which is a perfect square.





30

112 - Find the least number by which 175760 be divided to make it a perfect cube.





10

113 - Find the least number by which 294 must be multiplied to make it a perfect square.





6

114 - Find the least number of six digits which is a perfect square. Find the square root of this number.





317

115 - Find the least number that must be added to 6412 to make it a perfect square.





149

116 - Find the least number that must be subtracted from 1525 to make it a perfect square.





1521

117 - Find the least number which must be added to 6412 so as to get a perfect square.





149

118 - Find the least number which must be subtracted from 825 so as to get a perfect square.





41

119 - Find the least number which when multiplied with 74088 will make it a perfect square.





42

120 - Find the least square number divisible by each one of 8, 9and 10.





10

121 - Find the least square number which is exactly divisible by 10,12,15 and 18.





900

122 - Find the length of the side of a square whose area is 441 m2.





21

123 - Find the number of terms in the series 11,6,1,...-54?





14

124 - Find the number of terms in the series 2,3.5,5,...62 ?





41

125 - Find the number of terms in the series 8,11,14,....95





30

126 - Find the position of 98 in the following series 3,8,13 ....?





20th term

127 - Find the smallest number by 675 must be multiplied to obtain a perfect cube.





10

128 - Find the smallest number by 704 must be divided to obtain a perfect cube.





11

129 - Find the smallest number by which 1100 must be divided so that the quotient is a perfect square.





100

130 - Find the smallest number by which 1944 must be multiplied so that the product is a perfect cube.





3

131 - Find the smallest number by which 396 must be multiplied so that the product becomes a perfect square.





11

132 - Find the smallest number by which 4394 must be divided so that the quotient is a perfect cube.





2197

133 - Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square.





11

134 - Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square.





3

135 - Find the smallest square number that is divisible by each of the numbers 4, 9 and 10.





900

136 - Find the smallest square number that is divisible by each of the numbers 8, 15 and 20.





3600

137 - Find the square root of 1 (56/169)





1 2/13

138 - Find the square root of 324.





18

139 - Find the square root of 484 by prime factorization method.





22

140 - Find the square root of 625/256





25/26

141 - Find the square root of 784 by the long-division method.





28

142 - Find the sum 4+9+14+...+199 ?





4060

143 - Find the sum of all numbers between 200 and 400 which are divisible by 7?





8729

144 - Find the sum of the first 12 odd numbers?





144

145 - Find the sum of the first 30 terms of the progression 5+8+11+....?





1455

146 - Find the sum.13+15+...+47 ?





540

147 - Find the three numbers in A.P whose sum is 21 and sum of their squares is 179 ?





3, 7, 11

148 - Find the value of (29)³ by the short-cut method.





24389

149 - Find the value of (71)³ by the short-cut method.





357911

150 - Find the value of √243/√363.





45180

151 - Find the value of √(0.289 / 0.00121).





170 / 11

152 - Find the value of √(25/16).





45050

153 - Find the values of √7/2 up to 3 decimal places.





1.87

154 - Find the values of x in the Arithmetic series 3x+1,5x-1,5x+1,......





2

155 - Given that √13 = 3.605 and √ 130 = 11.40 , find the value of √ 1.30 + √1300 + √ 0.013 .





37.304

156 - Given that √4096 = 64, the value of √4096 + √40.96 + √.004096 is ?





70.464

157 - How many two -digit numbers satisfy this property : The last digit ( unit's digit) of the square of the two digit number is ?





None of these

158 - How many two digit numbers satisfy this property. The last digit (unit's digit) of the square of the two digits numbers is 8?





None of these

159 - How many two-digit numbers satisfy this property : The last digit ( unit's digit ) of the square of the two-digit number is 8 ?





None of these

160 - How many two-digit numbers satisfy this property : The last digit (units digit) of the square of the two-digit number is 8 ?





None of these

161 - How many two-digit numbers satisfy this property : The last digit (unit's digit) of the square of the two-digit number is 8 ?





None of these.

162 - How many two-digit numbers satisfy this property : The last digit (unit's digit) of the square of the two-digit number is 8 ?





None of these

163 - How many two-digit numbers satisfy this property.: The last digit (unit"s digit) of the square of the two-digit number is 8 ?





None of these

164 - How many two-digit numbers satisfy this property.: The last digit (units digit) of the square of the two-digit number is 8 ?





None of these

165 - How many two-digit numbers satisfy this property.: The last digit (unit's digit) of the square of the two-digit number is 8 ?





None of these

166 - If √ x ÷ √ 441 = 0.002 x÷441=0.002, then the value of x





0.1764

167 - If √(75.24 + N ) = 8.71, then the value of N is ?





0.6241

168 - If √1 + 27/169) = (1 + N/13). then N equals ?





1

169 - If √14 ≈ 3.742, then the value of √(7/2) is





1.871

170 - If √15625 = 125, then the value of [√15625 + √156.25 + √1.5625] is ?





138.75

171 - If √2 = 1.4142, the value of 7/ (3 + √2) is ?





1.5858

172 - If √2 = 1.4142, then the approximate value of 1/√2/9 is ?





0.471

173 - If √24 = 4.899, then the value of √8/3 is ?





1.633

174 - If √2401 = √7x then, the value of x is ?





4

175 - If √256 / √x = 2, then x is equal to ?





64

176 - If √2n = 64, then the value of n is ?





12

177 - If √3 = 1.732, then the approximate value of 1/√3 is ?





0.577

178 - If √3 =1.732 and √2 = 1.414, the value of 1/(√3 + √2) is ?





0.318

179 - If √3 ≈ 1.732, then the value of 1/√3 is





0.577

180 - If √6 = 2.55, then the value of √2/3 + 3 √3/2 is ?





4.675

181 - If √y/169 = 54/39, then y is equal to ?





324

182 - If 2 * 3 = √ 12 and 3 * 4 = 5, then the value of 5 * 12 is





13

183 - If 3 √ 5 + √ 125 = 17.88 then what will be the value of √80 + 6 √5 .





22.35

184 - If 35 + 125 = 17.88, then what will be the value of 80 + 65 ?





22.35

185 - If a * b * c = (√(a + 2)(b + 3)) / (c + 1), find the value of 6 * 15 * 3.





3

186 - If a = (√5 + 1) / (√5 - 1) and b = (√5 - 1) / ( √5 + 1) then the value of (a² + ab + b²) / (a² - ab + b²) is ?





45019

187 - if a*b = a + b −√ab, then find the value of 16∗9





13

188 - If √(1 + (x / 144)) = 13 / 12, the find the value of x.





25

189 - If √15 = 3.88, find the value of √(5/3)..





1.293

190 - If √3 = 1.732, find the value of √192 - 1/2*√48 - √75 correct to 3 places 2 of decimal.





1.732

191 - If N = 119/16 then √N = ?





1 1/4

192 - If pth term of an A.P is q the qth term is p, Find its term





p+q-r

193 - If x = 1 + √2 and y = 1 - √2, find the value of (x2 + y2).





6

194 - If x*y = x + y + √xy, the value of 6 * 24 is :





42

195 - In a right triangle ABC, ÐB = 90°.If AC = 13 cm, BC = 5 cm, find AB





12

196 - In an A.P T4:T7::2:3 then find T3:T11?





0.21736111111

197 - In an A.P the 10th term is 31 and 15th term is 46. Find the series?





4, 7, 10

198 - In an A.P the 12th term is 61 and common difference is 5 then find the series?





6, 11, 16

199 - In an A.P the seventh and nineth terms respectively 16 and 20 find the nth term ?





2n+2

200 - In an auditorium, the number of rows is equal to the number of chairs in each row. If the capacity of the auditorium is 2025, find the number of chairs in each row.





45

201 - Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. How many such cuboids will he need to form a cube?





20 cuboids

202 - Show that 216 is a perfect cube. Find the number whose cube is 216.





6

203 - The cube root of .000027 is ?





0.03

204 - The cube root of .000216 is:





0.06

205 - The cube root of 0.000729 is





0.09

206 - The cube root of 0.000729 is





0.09

207 - The cube root of 729 is





9

208 - The digit in the unit's place in the square root of 15876 is :





6

209 - The largest four digit number which is a perfect cube, is





9261

210 - The largest four digit number which is perfect cube, is :





5

211 - The leas perfect square number divisible by 3, 4, 5, 6 and 8 is :





3600

212 - The least number by which 1470 must be divided to get a number which is a perfect square is :





30

213 - The least number by which 1470 must be divided to get a number which is a perfect square, is :





30

214 - The least number by which 176 be multiplied to make the result a perfect square is ?





11

215 - The least number by which 216 must be divided to make the result a perfect square is ?





6

216 - The least number by which 294 must be multiplied to make it a perfect square is.





6

217 - The least number by which 294 must be multiplied to make it a perfect square, is :





6

218 - The least perfect square , which is divisible by each of 21, 36 and 66 , is :





213444

219 - The least perfect square number divisible by 3, 4, 5, 6 and 8 is :





3600

220 - The least perfect square number divisible by 3, 4, 5, 6, 8 is ?





3600

221 - The least perfect square, which is divisible by each of 21, 36 and 66 is :





213444

222 - The least perfect square, which is divisible by each of 21, 36 and 66 is:





213444

223 - The length of diagonal of a square is 8 cm. The length of the side of the square is ?





5.64 cm

224 - The product of four consecutive natural numbers plus one is





a square

225 - The Square root of (14+2\sqrt{13}) (14-2\sqrt{13}) is





12

226 - The square root of (7 + 35) (7 - 35) is





2

227 - The square root of 16641 is





129

228 - The square root of 300 × 7.5 is





none of these

229 - The square root of 64009 is :





253

230 - The square root of 64009 is:





253

231 - The student of class XI of a school donated 4356 Rupees in all, for Prime Minister's National Relief Fund. Each student donated as many rupees as the number of students in the class. Find the number o





66

232 - The students of Class VIII of a school donated Rs 2401 in all, for Prime Minister’sNational Relief Fund. Each student donated as many rupees as the number of students in the class. Find the number of





49

233 - The value of √0.01 + √ 0.81 + √ 1.21 + √ 0.0009 is .





2.13

234 - The value of √0.064 is ?





2.252

235 - The value of √0.121 is ?





0.347

236 - The value of √0.16 / 0.4 is ?





0.63

237 - The value of √0.9 is ?





0.94

238 - There are 500 children in a school. For a P.T. drill they have to stand in such a manner that the number of rows is equal to number of columns. How many children would be left out in this arrangement.





16 childrern

239 - Three-fifth of the square of a certain number is 126.15. What is the number ?





14.5

240 - What is the least perfect square which is divisible by each of 21, 36 and 66?





213444

241 - What is the smallest number by which 3087 may be multiplied so that the product is a perfect cube?





3

242 - What is the smallest number by which 3600 be divided to make it a perfect cube ?





450

243 - What is the smallest number by which 3600 be divided to make it a perfect cube?





450

244 - What is the smallest number by which 392 may be divided so that the quotient is a perfect cube?





49

245 - What is the square root of 0.0009 ?





0.03

246 - What is the square root of 0.0009?





0.03

247 - What is the square root of 0.16 ?





0.4

248 - What is the square root of 0.16 ?





0.4

249 - What is the square root of 0.16 ?





0.4

250 - What least number must be added to 5607 to make the sum a perfect square? Find this perfect square and its square root.





18

251 - What least number must be subtracted from 7250 to get a perfect square? Also, find the square root of this perfect square.





85

252 - What number should be divided by √ 0.25 0.25 to give the result as 25 ?





12.5

253 - which one of the following numbers has rational square root ?





0.09

254 - Which one of the following numbers has rational square root?





0.09

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