Percentage Questions Answers (MCQ) listings with explanations including questions on concept of percentage, population questions, depreciation questions and other important questions etc which are important for competitive exams.

21) 1/2 is what percent of 1

• 1) 150%
• 2) 200%
• 3) 250%
• 4) 300%
Ans.   A
Explanation :
1/2/1/3 * 100 = 1/2 * 3/1 * 100 = 150 %

22) 88% of 370 + 24% of 210 - x =

• 1) 150
• 2) 250
• 3) 158
• 4) 258
Ans.   D
Explanation :

23) An inspector rejects 0.08% of the meters as defective, How many meters he examine to reject 2 mete

• 1) 1200
• 2) 2400
• 3) 1400
• 4) 2500
Ans.   D
Explanation :
It means that 0.08% of x = 2 \begin{aligned} => ( \frac{8}{100 \times 100} \times x) = 2 \ => x = \frac{2 \times 100 \times 100}{8} \ => x = 2500 \end{aligned}

24) If sales tax is reduced from 5% to 4%, then what difference it will make if you purchase an item of Rs. 1

• 1) 10
• 2) 20
• 3) 30
• 4) 40
Ans.   A
Explanation :
Clue: Answer will be 5% of 1000 - 4% of 1000

25) In expressing a length of 81.472 km as nearly as possible with the three significant digits, find the percentage er

• 1) 0.35%
• 2) 0.34%
• 3) 0.034%
• 4) 0.035%
Ans.   C
Explanation :
Error = (81.5 - 81.472) = 0.028 Required percentage = \begin{aligned} \frac{0.028}{81.472} \times 100 = 0.034 % \end{aligned}

26) In an election between two candidates, 75 % of the voters cast their votes, out of which 2% of the votes were declared invalid. A candidate got 9261 votes which were 75% of the total valid votes. Find the total number of vot

• 1) 16800
• 2) 15800
• 3) 16700
• 4) 15700
Ans.   A
Explanation :
Let the total number of votes enrolled are x. Number of votes cast = 75% of x Valid votes = 98% of 75% of x Now, as 9261 is the 75% of valid casted votes so, 75% of 98% of 75% of x = 9261 [imporant] \begin{align} => \frac{75 \times 98 \times 75 \times x}{100 \times 100 \times 100} = 9261 \ => x = 16800 \end{align}

27) If 15% of 40 is greater than 25% of a number by 2, the number

• 1) 14
• 2) 16
• 3) 18
• 4) 20
Ans.   B
Explanation :
15/100 * 40 - 25/100 * x = 2 or x/4 = 4 so x = 16

28) A batsman scored 120 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wicke

• 1) 40%
• 2) 50%
• 3) 60%
• 4) 70%
Ans.   B
Explanation :
Number of runs made by running = 110 - (3 x 4 + 8 x 6) = 120 - (60) = 60 Now, we need to calculate 60 is what percent of 120. => 60/120 * 100 = 50 %

29) Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate

• 1) 55%
• 2) 56%
• 3) 57%
• 4) 58%
Ans.   C
Explanation :
Total number of votes polled = (1136 + 7636 + 11628) = 20400 So, Required percentage = 11628/20400 * 100 = 57%

30) 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. The marks obtained by them

• 1) 42,30
• 2) 42,31
• 3) 42,32
• 4) 42,33