Number System

Quantitative Aptitude (RBI Grade B)

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A number when multiplied by 7 gives another number which is as much above 260 as the original number itself is below 260 . What is 32% of the original number?

18.5

20.8

17.5

None of these

Explanation:

Let the original no. be x less than 260. According to question (260 – x) 7 = (260 + x) ⇒ x = 195 ∴ original no. 260 – 195 = 65
Required no. = = 20.

By: santosh

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