The monthly pocket money of ravi and sanjeev are in the ratio 5:7. Their expenditure ratio is 9:13. If each saves 40 rupees find their monthly pocket money
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Let monthly pocket money of Ravi be 5x and Sanjeev be 7x.
7x−80
5x−80
=
5
3
⇒25x−400=21x−240
∴4x=160
∴x=40
Ravi pocket money =5×40= Rs. 200
Sanjeev pocket money =7×40= Rs. 280
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