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  1. What sum of money lent out at simple interest will amount to ₹ 3400 in 3 yr at 1% per month ?
    1. ₹ 2400
    2. ₹ 1800
    3. ₹ 1600
    4. ₹ 2500
Correct Option: D

A = ₹ 3400 T = 3 yr , R = 1% per month = 12 % per annum Let the principle be ₹ P.
SI = (PTR/100) = (P x 3 x 12)/100 = ₹ 36P/100
A = (P + SI) = P + 36P/100 = ₹ 136P/100
⇒ 136P/100 = 3400
⇒ P = (3400 x 100)/136 = 2500
∴ Sum = ₹ 2500



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