A sum of money was lent at simple interest at 11 per annum for 3 1 2 years and 4 1 2 years resp...........

Quantitative Aptitude (CDS) Simple Interest

A sum of money was lent at simple interest at 11% per annum for 3(1/2) years and 4(1/2) years respectively. If the difference in interests for two periods was Rs.412.50, then the sum is?

Rs. 7000

Rs. 7500

Rs. 8000

Rs. 6600

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Explanation:

S.I.= P×r×t/100
412.5=P×11×3(1/2) /100 -P×11×4(1/2) /100
41250=33P/2 -22P(taking magnitude)
(11/2) P=41250
P=7500

By: bhavesh kumar singh

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A sum of money was lent at simple interest at 11 per annum for 3 1 2 years and 4 1 2 years resp...........

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Explanation:

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