Question
Arjun borrowed Rs. 11,000 at a simple interest rate of 9%
p.a., and Rs. 7,000 at 10% p.a. The total interest paid after βnβ years was Rs. 6,260. Find the value of βnβ.Solution
ATQ,
11000 Γ (9/100) Γ n + 7000 Γ (10/100) Γ n = 6260
Or, 990n + 700n = 6260
So, n = (6260/1690) = 3.7 years
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