simple interest and compound interest problems and solutions - Interview Questions

simple interest and compound interest problems and solutions

Ramakant wants to earn Rs. 1500 interest on his deposits. He plans to buy a sack of grains with the interest. He puts Rs. 5,000 into his account that earns 2.5% interest. How long will he need to leave his money in the account to earn this interest that would help him buy the sack of grains ?

Answer : C . 12 years

Vijay invested Rs.50,000 partly at 10% and partly at 15%. His total income after a year was Rs.7000. How much did he invest at the rate of 10% ?

Answer : A. 40,000…