Let the age of 'A', three years ago from now be '2x' years. So, age of 'B', 3 years ago from now = 2x X 2 = '4x' years ATQ; (2x + 6) X 1.6 = 4x + 6 Or, 3.2x + 9.6 = 4x + 6 Or, 3.6 = 0.8x So, x = 4.5 So, present age of 'A' = 2 X 4.5 + 3 = 12 years
A sum of money, invested for 8 years on 5% per annum simple interest, amounted to ₹287 on maturity.
What was the sun invested in?
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