Six years ago the ratio of ages of Kunal and Sagar was 6:5. Four years hence the ratio of their ages will be 11:10. Find their present ages.
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kunal present age = x
Sagar present age = y
six years back (x - 6)/(y-6) = 6/5 ;5x - 6y = -6
four years hence (x+4)/(y-4) = 11/10; 10x - 11y = 4
multiply 1st equation by 2
subtract 2nd equation from 1st
y = 16years
substitute value of y in any equation
x = 18 years
Sagar present age = y
six years back (x - 6)/(y-6) = 6/5 ;5x - 6y = -6
four years hence (x+4)/(y-4) = 11/10; 10x - 11y = 4
multiply 1st equation by 2
subtract 2nd equation from 1st
y = 16years
substitute value of y in any equation
x = 18 years
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