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Amal Babu deposited Rs 93,000 at 5% simple interest per annum for 3 years in a post office, 5 years in a state-owned bank and 2 years in a cooperative bank in such a way that the amount of interest received from each place is equal. How much money did Amal babu deposit at each place?

Ans: Rs. 30,000/- in post-office, Rs. 18,000/- in state-owned bank & Rs. 45,000 in cooperative bank.

A person deposits part of his savings in the bank and the rest in the post office. He would earn him 50 rupees more at the end of the year if he had kept all the money in the bank. If the annual simple interest rates in the bank and post office are 10% and 8% respectively, where did he keep the money? His savings amount was Rs.5700.

Ans: Post office = Rs. 2500, Bank = Rs. 3200