2. Questions Bank
  3. 8th Class
  4. Mathematics
  5. Comparing Quantities

8th Class Mathematics Comparing Quantities Question Bank Commercial Mathematics

  • question_answer
    DIRECTIONS: Passage-5 Read the passage(s) given below and answer the questions that follow. Radha spends 40% of her salary on food and 20% on conveyance. If her savings at the end of a month are Rs. 4000. What is her monthly salary?

    A) Rs. 9000        

    B)                      Rs. 7000

    C) Rs. 12000       

    D)          Rs. 10,000

    Correct Answer: D

    Solution :

    Let Radha?s salary be Rs. x. 40% of x + 20% of x + 4000 = x \[\frac{40}{100}x+\frac{20}{100}x+4000=x\] \[x-\frac{60}{100}x=4000\] \[\Rightarrow \,\frac{40}{100}x=4000\] \[x=\frac{4000\times 100}{40}\] \[x=\text{Rs}\,10,000\] Here monthly salary is Rs. 10, 000


You need to login to perform this action.
You will be redirected in 3 sec spinner