Quantitative Aptitude Ques 2027

Question: Ruhi spends 30% of her monthly salary on rent, transportation and bills in the respective ratio of 7: 5: 3. If she spends Rs. 3560 on the transportation, how much is her monthly salary?

Options:

A) Rs. 30250

B) Rs. 40000

C) Rs. 35600

D) Rs. 44750

Show Answer

Answer:

Correct Answer: C

Solution:

  • Let monthly salary of Ruhi = Rs. x and let she spend $ 7a, $ $ 5a $ and $ 3a $ on rent, transportation and bills, respectively. According to the question, $ x\times 30%=7a+5a+3a $

$ \Rightarrow $ $ x\times \frac{30}{100}=15a $

$ \Rightarrow $ $ x\times 3=15\times a\times 10 $

$ \Rightarrow $ $ x=5a\times 10 $ … (ii) It is also given that she spends Rs. 3560 on transportation.

$ \therefore $ $ 5a=3560 $ Now, putting the value of $ 5a $ in Eq. (i), we get $ x=3560\times 10=35600 $ Hence, monthly salary of Ruhi = Rs. 35600