A deposits a sum of money in a Bank, who pay `10%` simple interest. At the end of 5 years, he receives Rs.30000, then what sum he had deposited in the Bank?

Explanation

Let that sum of money be Rs. P
`because`S.I.=`(P×x 10 ×x 5)/100` = `50P/100`
From the question
`because` 30000 =`P+50P/100`
`rArr` 30000 = `P (1 + 50/100`)
`rArr P =(30000 × 100)/150` = Rs. 20000
`therefore` Amount deposited in Bank =Rs. 20000