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

Question : 16 [SSC SAS 2010]

The least number, that must be added to 1720 so as to obtain a perfect cube, is

a) 13

b) 7

c) 11

d) 8

Question : 17

The value of $√{√^3{0.000729}}$ is

a) 0.09

b) 0.9

c) 0.03

d) 0.3

Question : 18 [SSC CGL Prelim 2003]

Sum of digits of the smallest number by which 1440 be multiplied so that it becomes a perfect cube, is

a) 8

b) 4

c) 7

d) 6

Question : 19 [SSC CGL Tier-1 2011]

$√^3{1 - {127/343}}$ is equal to

a) 1 - $2/7$

b) $5/9$

c) $4/7$

d) 1 - $1/7$

Question : 20 [SSC CPO S.I.2007]

The smallest positive integer n, for which 864n is a perfect cube, is :

a) 4

b) 1

c) 3

d) 2