Question

the ratio of income of two person is 9:7 and the ratio of there is 4:3 if each of them manage to save rupees 2000 per month find the monthly income​

Answer 1

Answer:

Step-by-step explanation:

let their salaries be 9x and 7x.

Let their expenditure be 4y and 3y.

According to the question,

9x−4y=$2000 —(1)

7x−3y=$2000 —(2)

From (1)

x=  9

2000+4y  —(3)

On putting x in (2), we get

7×  9 (2000+4y) −3y=2000

9 (14000+28y) −3y=2000

9(14000+28y−27y )=2000

14000+y=18000

y=4000

Now, put y in (3)

x=  9( 2000+4×4000 )

​x=9 (2000+16000)

​x=  9 (18000 )=2000

So,

Salary of first person =9×2000=Rs. 18000

Salary of second person =7×2000=Rs. 14000

Hence, this is the answer.

Answer 2

Step-by-step explanation:

The answer is in the attachment