Q. Manoj deposited 29400 Rs. for 6 years at a simple interest. He got 4200 Rs. as interest after 6 years. The annual rate of interest was :
Answer: $latex 2\frac{8}{21}\%&s=1$
Notes: $latex \mathbf{2\frac{8}{21}\%}&s=1$
$latex 4200 = \frac{29400\times 6\times R}{100}&s=1$ $latex => R = \frac{4200}{294\times 6} = \frac{50}{21} = 2\frac{8}{21}\%&s=1$ Hence option [A] is correct answer.<

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