QA – Placement Quizzes | Simple Interest | Question 12

The SI on a sum is 1/4th of the principal, and the duration(in years) is equal to the rate per cent per annum. Find the rate per cent.
(A) 5
(B) 11/10
(C) 10
(D) 11

Answer: (A)

Explanation: SI= PRT/100
R=SI X100/(P X T)
= (P/4)X100/PXR
R2 = 100/4

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