Question
A pouch has 25-paisa, 50-paisa and 1-rupee coins in the
ratio 8:5:3. If the total amount is Rs. 90, find 75% of the number of 50-paisa coins.Solution
ATQ,
Let the counts be 8x, 5x and 3x. (0.25×8x) + (0.50×5x) + (1×3x) = 90 2.00x + 2.50x + 3.00x = 90 7.50x = 90 ⇒ x = 12 Number of 50p coins = 5x = 60 Required = 75% of 60 = 0.75×60 = 45
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