1.

A sum of money becomes 77/50 of itself in 18/5 years when invested at simple interest. What is the rate (in percentage) of interest per annum?1). 202). 183). 124). 15

Answer»

Let money is Rs. P and RATE is R%.

S.I. = Amount - Money = 77P/50 - P = 27P/50

⇒ 27P/50 = (P × R × 18)/(100 × 5)

∴ R = 30/2 = 15%


Discussion

No Comment Found