# Six years ago,the ratio of the ages ofkunal and sagar was6:5 4 years laterthe ratio of their ages willbe 11:10. what is the sagar"s age at present ?

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by chawba285

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by chawba285

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so

x-6/y-6=6/5 before 6 yrs

and

after 4 yrs

x+4/y+4=11/10

simplifying we get

5x-30=6y-36

or 5x-6y+6=0

similarly by simplifying second we get

10x-11y-4=0

now we have

10x-11y-4=0......1

and 5x -6y+6=0.........2

multiplying 2nd by 2 and subtracting from 1st eqn

10x-11y-4=0

10x-12y+6=0

by subtracting we get

y-16=0

y=16

so age of sagar is 16

and of kunal is 18 (if you are interesrted :P)