Question 1794 – Nielit Scientist-B 17-12-2017
November 5, 2023Question 1800 – Nielit Scientist-B 17-12-2017
November 5, 2023Question 1798 – Nielit Scientist-B 17-12-2017
Find the smallest number y such that y*162 (y multiplied by 162) is perfect cube:
Correct Answer: C
Question 9 Explanation:
Prime factorize: 162
⇒162 =2×3×3×3×3 = 33×(2×3)
For (2×3) to be a perfect cube, it should be multiplied by (22×32)
∴ Required number = y = 22×32 = 36
⇒162 =2×3×3×3×3 = 33×(2×3)
For (2×3) to be a perfect cube, it should be multiplied by (22×32)
∴ Required number = y = 22×32 = 36
24
27
36
38
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