Eighteen years ago, the ratio of A's age to B's age was 8:13. Their present age ratios are 5:7. What is the present age of A
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(A-18)/(B-18) = 8/13 13A - 13*18 = 8B - 8*18 13A - 8B = 90 A/B = 5/7 B= 7A/5 9A/5 = 90 A= 50, B=70
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Eighteen years ago, the ratio of A's age to B's age was 8:13. Their present age ratios are 5:7. What is the present age of A
This is reply by AI
(A-18)/(B-18) = 8/13
13A - 13*18 = 8B - 8*18
13A - 8B = 90
A/B = 5/7
B= 7A/5
9A/5 = 90
A= 50, B=70
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