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Snehashish deposited two parts of a sum of Rs. 28000 in different cooperative banks at the rates of 8% per annum and 14% per annum respectively. In one year he got Rs. 3200 as the total interest. What was the amount deposited at the rate of 8% per annum?1). Rs. 150002). Rs. 140003). Rs. 120004). Data inadequate |
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Answer» Let the sum DEPOSITED at 8% interest be Rs. x Snehashish deposited two parts of a sum of Rs. 28000 in different cooperative banks at the rates of 8% per annum and 14% per annum respectively. So, the sum deposited at 14% interest = Rs. (28000 – x) In one year he got Rs. 3200 as the total interest. So, we can write now, (x × 1 × 8%) + [(28000 – x) × 1 × 14%] = 3200 ⇒ 8x + 392000 – 14X = 320000 ⇒ 6x = 72000 ⇒ x = 12000 ∴ The AMOUNT deposited at 8% interest = Rs. 12000. |
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