Qunat Quiz - Percentage

Q1)-If the price of an article is reduced by 20 %, the number of articles sold is increased by 30 %. What will be the effect on the revenue ?

4 %

10 %

6 %

15 %

Ans.- A

Q2)-Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. What are the marks obtained by them?

42, 33

44, 36

42, 36

43, 36

Ans.- A
Let the marks secured by them be x and (x + 9) Then sum of their marks = x + (x + 9) = 2x + 9 Given that (x + 9) was 56% of the sum of their marks =>(x+9) = 56/100(2x+9) =>(x+9) = 14/25(2x+9) => 25x + 225 = 28x + 126 => 3x = 99 => x = 33 Then (x + 9) = 33 + 9 = 42 Hence their marks are 33 and 42

Q3)-A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:

588 apples

600 apples

672 apples

700 apples

Ans.- D

Q4)-If A = x% of y and B = y% of x, then which of the following is true?

A is smaller than B.

A is greater than B

Relationship between A and B cannot be determined.

None of these

Ans.- D

Q5)-In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was :

2000

2500

2700

3200

Ans.- C

Q6)-An inspector rejects 0.08% of the meters as defective, How many meters he examine to reject 2 meteres

1200

2000

1600

2500

Ans.- D

Q7)-In an election between two candidates first candidate got 60% of votes polled and second Candidate got 280 votes. The total number of votes polled was?

700 votes

750 votes

650 votes

600 votes

Ans.- A
Total = 100 %, First person got 60% second person got remaining 40 % of votes. than 40 % = 280 40% = 40×7 = 280 100% =100×7 =700votes

Q8)-Two numbers are less than third number by 30% and 37% respectively. How much percent is the second number less than by the first ?

8%

9%

10%

11%

Ans.- C
Let the third number is x. then first number = (100-30)% of x = 70% of x = 7x/10 Second number is (63x/100) Difference = 7x/10 - 63x/100 = 7x/10 So required percentage is, difference is what percent of first number => (7x/100 * 10/7x * 100 )% = 10%

Q9)-Raman’s salary was decreased by 50% and subsequently increased by 50%. How much percent does he lose?

25 %

30 %

15 %

14 %

Ans.- A

Q10)-The difference of two numbers is 20% of the large number. If the smaller number is 20, than the larger number is.

40

50

25

20

Ans.- C