Quantitative Aptitude Ques 2176

Question: Monthly incomes of A and B are in the ratio of 4: 3 and their expenses bear the ratio 3: 2. Each of them save Rs. 6000 at the end of the month, then the monthly income of A is

Options:

A) Rs. 12000

B) Rs. 24000

C) Rs. 30000

D) Rs. 60000

Show Answer

Answer:

Correct Answer: B

Solution:

  • Let the monthly incomes of A and B be Rs. 4x and Rs. 3x, respectively and their expenditures be Rs. 3y and Rs. 2y, respectively.

$ \therefore $ $ 4x-3y=6000 $ and $ 3x-2y=6000 $

$ \Rightarrow $ $ 4x-3y=3x-2y $
$ \Rightarrow $ $ x=y $

$ \therefore $ $ 4x-3y=6000 $
$ \Rightarrow $ $ x=6000 $

$ \Rightarrow $ A’s monthly income $ =4x=Rs.,24000 $