Q11. Do as directed:
a)Robert deposited ₹ 12,500 in a bank for 3 years. After three years, he received ₹ 15,500 from the bank as the amount. Find simple interest and rate of interest per annum.
b)Hameed buys a cycle for ₹ 1,700 and sells it at ₹ 1,870. What is his profit percentage?
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