Question
Anil borrowed Rs. 7,200 at simple interest of 15% p.a. and
Rs. 8,400 at simple interest of 12% p.a. The total interest he paid after ‘y’ years is Rs. 8,352. Find the value of ‘y’.Solution
ATQ,
7200 × (15/100) × y + 8400 × (12/100) × y = 8352
Or, 1080y + 1008y = 8352
So, y = (8352/2088) = 4
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