The ratio between the ages of a and b is 3:4 waht will be the ratio of their ages after nine years when the sum of their ages will be 60 years
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Take variation be = x
Let age of A be = 3x
Age of B = 4x
A/q
After 9 years.
Age of A. = 3x+9
Age of B. = 4x+9
3x+9+4x+9. = 60
7x+18 = 60
7x. = 60-18
x. = 42/7
x = 6
Age of A= 3*6 =18 years
Age of B= 4*6 =24 years
Ratio of their ages= 18:24
= 3:4 (Ans)
Let age of A be = 3x
Age of B = 4x
A/q
After 9 years.
Age of A. = 3x+9
Age of B. = 4x+9
3x+9+4x+9. = 60
7x+18 = 60
7x. = 60-18
x. = 42/7
x = 6
Age of A= 3*6 =18 years
Age of B= 4*6 =24 years
Ratio of their ages= 18:24
= 3:4 (Ans)
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