CSAT - Qa - Percentages - 1

10 Questions

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Questions and Answers
  • 1. 
    Due to reduction of price of petrol by 30%, a customer can buy 15 litres more  more for the same amount. Find the original quantity of petrol he used to buy
    • A. 

      40 L

    • B. 

      35 L

    • C. 

      45 L

    • D. 

      30 L

  • 2. 
    Raju invested 20% of his money in mutual funds, 20% of the rest in gold and spent 25% of the remaining for his kids school fees. What percentage of the original sum was he left with?
    • A. 

      35 %

    • B. 

      28 %

    • C. 

      48 %

    • D. 

      45 %

  • 3. 
    In a class of 300 students, the number of boys is twice that of girls. If 50% of the boys and 48% of girls appear in the examination, how many students did not appear?
    • A. 

      160

    • B. 

      148

    • C. 

      152

    • D. 

      144

  • 4. 
    If the length and breadth of a rectangle is increased by 10% and 50% respectively. Then the percentage increase in the area of the rectange is
    • A. 

      75 %

    • B. 

      65 %

    • C. 

      45 %

    • D. 

      55 %

  • 5. 
    In a village, 18% of the population is children and 10% of the children are female. If the number of female children is 90, then what is the population?
    • A. 

      5000

    • B. 

      6000

    • C. 

      4000

    • D. 

      3000

  • 6. 
    If the radius of a circular region were decreased by 30 percent, the area of the circular region would decrease by what percent?
    • A. 

      35

    • B. 

      30

    • C. 

      49

    • D. 

      51

  • 7. 
    30% of the students in a class wear shoes, 20% of the students, who wear shoes, wear Nike shoes. If the class has 300 students then how many wear Nike shoes?
    • A. 

      12

    • B. 

      16

    • C. 

      18

    • D. 

      20

  • 8. 
    Peter got 30%, of the maximum marks in an examination and failed by 10 marks. However, Paul who took the same examination got 40% of the total marks and got 15 marks more than the passing marks. What was the passing marks in the examination?
    • A. 

      300

    • B. 

      150

    • C. 

      250

    • D. 

      200

  • 9. 
    Rajan got an increment of 25 % on his salary at the start of the year 2007. But 2008 being a recession year the company cut the salaries of all employees by 10% by the end of the year. What was the net percentage change in his compred to 2006 end and 2009 start.   
    • A. 

      15

    • B. 

      10

    • C. 

      12.5

    • D. 

      20

  • 10. 
    Milk contains 80% water and 20% solid. If 50% of the water is evaporated from milk after boiling it for 15 mins, then what will be the percentage solid in the boiled milk.
    • A. 

      40%

    • B. 

      33.33 %

    • C. 

      66.66 %

    • D. 

      25 %