SATHEE: Quantitative Aptitude Ques 356

Quantitative Aptitude Ques 356

Question: A and B have their monthly incomes in the ratio 8: 5, while their monthly expenditures are in the ratio 5: 3. If they have saved Rs. 12000 and Rs. 10000 monthly respectively, then the difference in their monthly in comes is

Options:

A) Rs. 52000

B) Rs. 46000

C) Rs. 44000

D) Rs. 42000

Show Answer

Answer:

Correct Answer: D

Solution:

Let A’s and B’s monthly income be 8x and 5x and expenditures be 5y and 3y.

$ \therefore $ $ 8x-5y=12000 $ (i) and $ 5x-3y=10000 $ … (ii) From Eqs. (i) and (ii), we get $ x=14000 $ and $ y=20000 $

$ \therefore $ A’s income $ =8x=8\times 14000=Rs.,112000 $ B’s income $ =5x=5\times 14000=Rs.,70000 $

$ \therefore $ Difference $ =112000-70000=Rs.,42000 $

Quantitative Aptitude Ques 355

Quantitative Aptitude Ques 357

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