Question

12. The monthly income of A and B are in the
ratio 6:5 and their expenses are in the ratio :9
7.if A saves Rs 300 and B saves 500 find
the income of B​

Answer 1

Answer:

Rs 4000

Step-by-step explanation:

Let the income of A and B be Rs 6x and 5x respectively and there expenses be 9y and 7y respectively.

A/Q,

6x - 9y = Rs 300......(i)

5x - 7y = Rs 500......(ii)

Now, (i) × 5 - (ii) × 6 =>

30x - 45y - 30x + 42y = 1500 - 3000

=> - 3y = -1500

=> y = 500

Now, Putting y = Rs 500 in equation (i),

6x = 300 + 4500

=> 6x = 4800

=> x = 800

Therefore income of B = 5x = Rs 4000