Question
A woman has Rs. 155 in the form of 25 paise coins, Rs. 2
coins, and Rs. 10 coins. The ratio of their counts is 6:5:3. What is the difference between the number of 25 paise coins and Rs. 10 coins?Solution
ATQ,
Let the number of 25 paise coins, Rs. 2 coins, and Rs. 10 coins be 6x, 5x, and 3x, respectively According to the question, 6x × 0.25 + 5x × 2 + 3x × 10 = 155 Or, 1.5x + 10x + 30x = 155 Or, 41.5x = 155 Or, x = 155 / 41.5 = 10 Required difference = 6x – 3x = 3x = 30
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