ATQ, 1935 = 6000 × {(1.15)a – 1} Or, {(1.15)a – 1} = 0.3225 Or, (1.15)a = 1.3225 = (1.15)2 Or, a = 2 Required simple interest = {(6000 × 15 × 2)/100} = Rs.1,800
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