Multiple choice

A certain sum is invested at simple interest at x% p.a. for 5 years. Had it been invested at (x+5) % p.a., the simple interest would have been Rs 9200 more than the earlier one. What is the sum?

  1. 36,800

  2. 36,400

  3. 35,800

  4. 40,000
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

At rate x% for 5 years, interest = P×x×5/100. At rate (x+5)% for 5 years, interest = P×(x+5)×5/100. The difference is P×5×5/100 = P/4 = 9200, so P=36800.

Keep practicing — related questions