CSAT - Qa - Percentages - 1

10 Questions  Settings  Total Time for this section is 30 min You can review all the questions togather at the end There is 1/3 negative marking

• 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 %

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