Ratio and Proportion Practice Test 1

Question : 1 of 40

Marks: +1, -0

The ratio of incomes of A and B is 5 : 4 and the ratio of their expenditures is 3 : 2. If at the end of the year each saves Rs. 1600, then income of A is:

Rs. 4400
Rs. 4000
Rs. 3600
Rs. 3400

Validate

Solution:

Let the incomes of A and B be Rs. 5x and Rs. 4x and their expenditures be Rs. 3y and Rs. 2y respectively.
Hence, 5x – 3y = 1600 ...(i)
4x – 2y = 1600 ...(ii)
Multiplying equation (i) by 2 and (ii) by 3 and subtracting, we get

x = 800

Hence, income of A = Rs. 5x = Rs. 5 × 800 = Rs. 4000

Go to Question:

Next Question