Question

28. The simple interest on a certain sum for 6 months at 8% per annum is Rs.150 less than the

simple interest on the same sum for 15 months at 5% per annum. The sum is?.​

Answer 1

Answer:

1st part:

I=P×(8/100)×(6/12)=P/25

2nd part:

I= P×(5/100)×(15/12)=P/16

It is given

P/16-P/25 = 150

P(9/(16×25))=150

P=150×16×25/9