The ages of two persons are in the ratio 5:7.Eighteen years ago their ages will be in the ratio 8:13.Find their present ages
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Answer:
50 & 70 Years
Step-by-step explanation:
a/b = 5/7
7a = 5b
(a-18)/(b-18) = 8/13
13a - 234 = 8b - 144
65a - 1170 = 40b - 720
56a = 40b
65a - 56a = 1170-720
9a = 450
a = 50
b = 7*50/7 = 70
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