The ratio of the incomes of two employees is 7 : 4, and the ratio of their expenditures is 3 : 1. If each of them manages to save ₹4,800 per month, find the sum of their monthly incomes (in ₹).
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 21120.
Given that
The income of two employees = 7x and 4x
The expenditure of two employees = 3y and y
Savings are equal for both employees = 4800 Rs
we know that
Income = Expenditure + Savings
According to the question
⇒ 7x - 3y = 4x - y
⇒ 3x = 2y
⇒ x/y = 2/3
Hence, 7x - 3y = 7 * 2 - 3 * 3 = 14 - 9 = 5 units = 4800
22 units = 4800 * 22 /5 = 21120 Rs