Quantitative Aptitude Ques 2407

Question: Neet, out of the total monthly salary, pays 20% towards house and 15% towards his miscellaneous expenditure. From the remaining amount, the respective ratio of the amount he invests in a scheme and the amount left with him is 5: 8. If he invests Rs. 6500 in the scheme, then what is his monthly salary?

[IBPS RRB (Office Assistant) 2015]

Options:

A) Rs. 26000

B) Rs. 36250

C) Rs. 27000

D) Rs. 24250

E) Rs. 30000

Show Answer

Answer:

Correct Answer: A

Solution:

  • Let Neet’s total monthly salary be Rs. x. Expenditure =(20%+15%)=35% Remaining amount = 65% Ratio of the amount invested and amount left is 5: 8. $ \frac{6500}{\text{65 }%of,x-6500}=\frac{5}{8} $

$ \Rightarrow $ $ 6500\times 8=5( \frac{65}{100}x-6500 ) $

$ \Rightarrow $ $ 52000=\frac{65}{20}x-32500 $

$ \Rightarrow $ $ 84500=\frac{13}{4}x $

$ \Rightarrow $ $ \frac{84500\times 4}{13}=x $

$ \therefore $ $ 26000=x $ Hence, monthly salary is Rs. 26000.