Question

The monthly incomes of A and B are in the ratio 5:4 and their monthly expenditure are in the ratio 7:5. If each saves rs 3000 per month,find the monthly income of each.(full with step).

Answer 1

Answer:

A=10000 B = 8000

Step-by-step explanation:

monthly income of A and B ratio

= 5:4

let monthly income of A be =5x

the monthly income of B = 4x

the monthly expenditure of A and B ratio = 7:5

so, let monthly expenses of A = 7y

the monthly expenses of B = 5y

so, As Per Problem

5x -7y = 3000--------------1

4x -5y =3000-----------------2

multiplying 5 with equ. 1 and 7 with equ. 2 and subtracting them we get,

25x -35y -28x + 35y =15000-21000

or, -3x =-6000

or, x= 2000

so, A = 10000

B= 8000