Percentage

Question: If A = x% of y and B = y% of x, then which of the following is true? [A]. A is smaller than B. [B]. A is greater than B [C]. Relationship between A and B cannot be determined. [D]. If x is smaller than y, then A is greater than B. Answer:…

Question: If 20% of a = b, then b% of 20 is the same as: [A]. 4% of a [B]. 5% of a [C]. 20% of a [D]. None of these Answer: Option A Explanation: 20% of a = b      20 a = b. 100 b% of 20 = b x 20 = 20…

Question: 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 are: [A]. 39, 30 [B]. 41, 32 [C]. 42, 33 [D]. 43, 34 Answer: Option C Explanation: Let their marks be (x…

Question: In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is of the number of students of 8 years of age which is 48. What is the total number of students in the school? [A]. 72 [B]. 80 [C]. 120 [D]. 150…

Question: 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: [A]. 2700 [B]. 2900 [C]. 3000 [D]. 3100 Answer: Option A Explanation: Number of valid…

Question: A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had: [A]. 588 apples [B]. 600 apples [C]. 672 apples [D]. 700 apples Answer: Option D Explanation: Suppose originally he had x apples. Then, (100 – 40)% of x = 420. 60 x x = 420 100…

Question: A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets? [A]. 45% [B]. 45 5 % 11 [C]. 54 6 % 11 [D]. 55% Answer: Option B Explanation: Number of runs made by running = 110 – (3…

Question: Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items? [A]. Rs. 15 [B]. Rs. 15.70 [C]. Rs. 19.70 [D]. Rs. 20 Answer: Option C…

Question: What is the percentage error in the calculation? [A]. 34% [B]. 44% [C]. 54% [D]. 64% Answer: Option D Explanation: Let the number be x. Then, error = 5 x – 3 x = 16 x. 3 5 15 Error% = 16x x 3 x 100 % = 64%. 15 5x

Question: The population of a town increased from 1,75,000 to 2,62,500 in a decade. The average percent increase of population per year is: [A]. 4.37% [B]. 5% [C]. 6% [D]. 8.75% Answer: Option B Explanation: Increase in 10 years = (262500 – 175000) = 87500. Increase% = 87500 x 100 % = 50%. 175000 Required…