The ages of saleem and simon are in the ratio 3:4, four years ago their ages were in the ratio 5:7. Find their ages.
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24 and 32 are their ages
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let saleem's age be 3x
let Simon's age be 4x
four years ago
5(3x-4)=saleem's age
7(4x-4)=Simon's age
5(3x-4)=7(4x-4)
15x-20=28x-28
28-20=28x-15x
8=13x
13x-8
13-8/x
5/x
5=x
saleem's age =3x
=3×5
=15
Simon's age =4x
=4×5
=20
let Simon's age be 4x
four years ago
5(3x-4)=saleem's age
7(4x-4)=Simon's age
5(3x-4)=7(4x-4)
15x-20=28x-28
28-20=28x-15x
8=13x
13x-8
13-8/x
5/x
5=x
saleem's age =3x
=3×5
=15
Simon's age =4x
=4×5
=20
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