Interest rate is 2%. When I make a deposit of 10,000 yen with the maturity of 3 years, I plan to receive an interest every year. In this case, I can receive 200 yen as an interest after 1 year, and 200 yen as an interest after 2 years. At the end of the 3r year, I can receive 10,200 yen including principal and interest.

In other situation, if I make a deposit of 10,000 yen with the maturity of 3 years, I can receive 250 yen after 1 year, and 250 yen after 2 years. At the end of the 3rd year, I can receive 10,250 yen. How much is the interest rate of this opportunity? Write an answer like the example. 2.1 (%)

DO NOT put % in your answer