Question

Interest on Rs 6000 at the rate of 7.5% for 2 years is __________​

Answer 1

Answer:

At some rate of simple interest, A lent Rs. 6000 to B for 2 years and Rs. 1500 to C for 4 years and received Rs. 900 as interest from both of them together. The rate of interest per annum was:

[A]5%

[B]10%

[C]6%

[D]8%

5%

If rate of interest be R% p.a. then,

S.I. = \frac{Principal\times Time\times Rate}{100}

\therefore \frac{6000\times 2\times R}{100}+\frac{1500\times 4\times R}{100}=900

=>120R+60R=900

=>180R=900

=>R=\frac{900}{180}= 5%

Step-by-step explanation: