Postal or Sorting Assistants Model Paper 8 With Solutions

Question : 16 of 100

Marks: +1, -0

The simple interest accrued on a sum of money at the end of four years is

1/5^{th}

of its principal. What is the rate of interest per annum?

Solution:

(b) Let sum=₹x, S.I=

1/5

x
Time = 4 years, Rate = ?
S.I.

{P×T×R}/100

⇒

1/5 x={x×R×4}/100

100/{5×4 }=5%

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