subhas ki age sonu ki age se 4 year kam hai unki age ka anupat 4:5 hai to subhas ki age hogi
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Let Sonu age be x
then Subhash age=x- 4 year
equation formed :
x-4/x=4/5
5 (x- 4)=4x
5x-20=4x
-20=4x-5x
-20=-x so value of x is 20 i.e Sonu
Subhas=20- 4=16 years
then Subhash age=x- 4 year
equation formed :
x-4/x=4/5
5 (x- 4)=4x
5x-20=4x
-20=4x-5x
-20=-x so value of x is 20 i.e Sonu
Subhas=20- 4=16 years
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