Question

Monthly income of A and B are in the ratio 4 :5 their expenses are in the ratio of 7:9 and their savings are in the ratio of 4:3 If the total savings is rupees 350 find the individual monthly income​

Answer 1

Let the monthly income of one person be 4x and that of the other be 5x

Let the monthly expenses of one person be 7y and that of other be 9y

According to given condition.,

4x-7y=50-(1)-*5=20x-35y=250

5x-9y=50-(2)-*4=20x-36y=200

=y=50

from 1

4x-7*50=50

4x=50+350

4x=400

x=100

• Monthly income of one person=4x=4*100=400
• Monthly income of the other person=5x=5*100=500

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