Question
A sum of money grows to Rs. 5,400 in 6 years and Rs.
6,000 in 8 years under simple interest. What is the original principal amount?Solution
ATQ, Difference in interest over 2 years: 6,000 − 5,400 = 600 Annual interest: 600 / 2 = 300  Principal = 5,400 − (6 × 300) = 3,600
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