Question

Lal borrowed Rs 20000 from his friend Sanjay at 18% per annum simple interest. He lent it to Arun at the same rate compounded annually. Find his gain after two years.

Answer 1

Answer:

Rs 648

Step-by-step explanation:

First we will calculate the S.I. = 20000*18*2/100 = Rs 7200.

So, Mewalal has to pay Rs 27200 to Roopalal.

But, Amount when compounded = 20000*(1+18/100)^2 = Rs 27848, which he will get from Rampal.

C.I.=27848-20000=Rs 7848

therefore, profit=7848-7200=Rs 648

Thus , the profit will be Rs 648

Answer 2

Answer: P=20000

R=18%

FOR T=2YEAR

C.I. -S.I.=P(R/100)^2

=20000*18*18/10000

=2*324

=648rs.

Step-by-step explanation: