Aptitude & Reasoning: Solved Problems on Ratio.
Problem 3: In a bag, the number of 25 paise coins, 20 paise coins, and 10 paise coins are in the ratio 3:7:9. Together they are worth ₹61. Find the number of 20 paise coins.

Problem 4: The ratio of the ages of a man and his wife is 6:5. After 16 years, the ratio becomes 10:9. Find the husband's age when the wife was born.

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