Q131
By what least number should 4320 be multiplied so as to obtain a number which a perfect cube ?
A.
40
B.
50
AnswerC.
60
D.
90
Answer: Option B
Solution
Answer: Option B
Solution:
According to question,
Factors are :
3 × 3 × 3 × 2 × 2 × 2 × 2 × 2 × 5
∴ It must be multiplied by
= 2 × 5 × 5
= 50