The product of two numbers is 693. If the numbers are in a ratio 7: 11, find the difference between the numbers.
The ratio of boys to girls in a class is 5 : 6. If 5 more boys join the class, the ratio becomes 10: 11. How many girls are there in the class?
The ratio of the ages of A and B is 7 : 9. After 4 years, the ratio becomes 9 : 11. What is A's present age?
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Question ID: 11119
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