The ratio between the ages of A,B and C is 3:7:9 and difference in the ages of B and C is 8 years what is the sum of their ages
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Step-by-step explanation:
If the ratio between the ages A, B, C is 3:7:9 and the difference in the ages of B and C is 80 years, what is the sum of their ages?
Solution: Let the ages of A be 3x, B - 7x and C - 9x.
9x-7x = 2x = 80, or x = 40.
A is 120 years, B is 280 years and C is 360 years and the sum of their ages is 760 years. Answer.
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