the ratio of the present ages of Rahim and his wife is 4:3 .After 4 years the ratio of their ages will be 9:7 . What is the present age of Rahim ?
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Answer: Let Rahim's present age = 4x years
His wife's present age = 3x years
After 4 years,
Rahim's age = 4x+4 years
His wife's age = 3x+4 years
According to the question,
4x+4 = 9
3x+4 7
7(4x+4) = 9(3x+4)
28x+28 = 27x+36
28x-27x = 36-28
x = 8
Rahim's present age = 4x = 4×8 = 32 years
His wife's present age = 3x = 3×8 = 24 years
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