10 Questions

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 %