Question
The simple interest on a sum of money will be Rs. 800
after 10 years. If the principal is tripled after 5 years, what will be total interest at the end of tenth year?Solution
Simple interest for 10 years = Rs. 800 So, simple interest for 5 years = Rs. 400 According to question, If the principal is tripled after 5 years then interest also be tripled for 5 years So, interest for rest 5 years = 400 × 3 = Rs. 1200 So, Total interest for 10 years = 1200 + 400 = Rs. 1600
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