Question

The ratio of monthly incomes of A and B is 7 : 6 and the ratio of their monthly expenditures is 5 : 4. If each of them saves Rs. 600 per month, find the sum of their monthly incomes?
A) 3600
B) 2100
C) 3900
D) 2800

Answer 1

C).3900. according to me hope it's correct

let the monthly incomes of A and B be 7x and 6x respectively and expenditure be 5x and 4x...

A/Q

7x-5x=600 ....x=300

Now 7x = 300×7=2100

6x=300×6=1800

2100+1800=3900

Answer 2

answer is option C)3900

hope it will help you