The sum of ages of a and b is 50 years and the ratio of the ages after five years is 7 :8 find the ratio of the ages after 9 years
Answers
Answered by
1
Step-by-step explanation:
a+b=50 ...(1)
(a+5)/(b+5) = 7/8
8a + 40 = 7b + 35
7b-8a = 5
Multiply (1) by 8,
8a+8b = 400
-8a+7b = 5
-------------------
15b = 405
b = 27
a = 23
Similar questions