Model 3 Simplification based on cube & cube root Practice Questions Answers Test with Solutions & More Shortcuts

Question : 6

$√^3{8}/√{16} ÷ √{100/49} × √^3{125}$ is equal to :

a) $4/7$

b) 7

c) $7/100$

d) 1$3/4$

Question : 7 [SSC CGL Prelim 2000]

$√^3{{72.9}/{0.4096}}$ is equal to :

a) 13.6

b) 0.5625

c) 182

d) 5.625

Question : 8 [SSC CGL Prelim 2007]

The sum of the squares of 2 numbers is 146 and the square root of one of them is $√5$. The cube of the other number is

a) 1441

b) 1111

c) 1331

d) 1221

Question : 9 [SSC CPO S.I.2010]

By what least number should 4320 be multiplied so as to obtain a number which is a perfect cube ?

a) 80

b) 40

c) 60

d) 50

Question : 10

Which of the following is a perfect square as well as a cube? 343, 125, 81, or 64

a) 64

b) 81

c) 343

d) 125