The monthly pocket money of ravi and sanjeev are in the ratio 5 : 7. T

1.	The monthly pocket money of ravi and sanjeev are in the ratio 5 : 7. Their expenditure are in the ratio 3 : 5. If each saves Rs. 80 every month, find their monthly pocket money.
Answer» Given that the pocket money of Ravi and Sanjeev Are in the ratio 5:7 Thus, the pocket money of ravi is 5k and that of Sanjeev is 7k Also given that the expenditure of ravi and Sanjeev Are in the ratio 3:5 Thus, the expenditure of ravi is 3m and that of Sanjeev is 5m And each of them saves Rs. 80 ⟹ 5k – 3m = 80 ….. (1) 7k – 5m = 80 …….. (2) Solving equations (1) and (2), We have, K = 40, m = 40 Hence the monthly pocket money of Ravi is Rs. 200 And that of Sanjeev is Rs. 280

The monthly pocket money of ravi and sanjeev are in the ratio 5 : 7. Their expenditure are in the ratio 3 : 5. If each saves Rs. 80 every month, find their monthly pocket money.

Answer»

Given that the pocket money of Ravi and Sanjeev

Are in the ratio 5:7

Thus, the pocket money of ravi is 5k and that of

Sanjeev is 7k

Also given that the expenditure of ravi and Sanjeev

Are in the ratio 3:5

Thus, the expenditure of ravi is 3m and that of

Sanjeev is 5m

And each of them saves Rs. 80

⟹ 5k – 3m = 80 ….. (1)

7k – 5m = 80 …….. (2)

Solving equations (1) and (2), We have,

K = 40, m = 40

Hence the monthly pocket money of Ravi is Rs. 200

And that of Sanjeev is Rs. 280