1.

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

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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