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Aptitude - Percentages Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Percentages. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Answer : B
Explanation
5 : 4 = 5⁄4 = (5⁄4 x 100 ) % = 125 %
Answer : C
Explanation
let z be the number. Then, 20% of z = 120 i.e (20⁄100 x z) = 120 Therefore, z = 600 120% of z = (120⁄100 x 600) = 720
Q 3 - A fruit seller had some fruits. He sells 40% of them and still has 420 of them. Originally, he had how many of them?
Answer : C
Explanation
Let he had p number of fruits. The, (100 - 40)% of p = 420 Therefore, p = (420 x 100⁄60) = 700
Q 4 - Siya secures 90%, 60% and 54% marks in test papers with 100, 150 and 200 respectively as maximum marks. The percentage of her aggregate marks is?
Answer : D
Explanation
Marks secured = [90% of 100 + 60% of 150 + 54% of 200] = 90 + 90 + 108 = 288 Total maximum marks = 100 + 150 + 200 = 450 Therefore aggregate marks of Siya is : (288⁄450x 100)% = 64%
Q 5 - A salesman is allowed 51⁄2% discount on the total sales made by him plus a bonus of 1⁄2% on the sales over Rs. 10000. If his total earnings were Rs. 1990, then his total sales in Rs. were?
Answer : C
Explanation
Let z be the total sales. Then, 51⁄2% of z + 1⁄2% of (z - 10000) = 1990 → 12z - 10000 = 398000 z = Rs. 34000
Q 6 - A student has to secure minimum 35% marks to pass in an examination. If he gets 200 marks and fails by 10 marks, then the maximum marks are
Answer : C
Explanation
Let the maximum marks be x. According to the question, 35% of x = 200 + 10 Or, x = 600
Q 7 - 50% of a number when added to 50, is equal to a number .the number is
Answer : A
Explanation
50 + 50% of x =x x - 1/2x = 50 x=100
Q 8 - The population of a town is 176400. It increases annually at the rate of 5% p.a. What was it 2 years ago?
Answer : A
Explanation
Population 2 years ago = 176400/(1+5/100)2 =(176400*20/21*20/21)=160000.
Q 9 - In an examination, 60% of the candidates passed in English and 70% of the candidates passed in Mathematics but 20% failed in both the subjects. If 2500 candidates passed in both the subjects, the number of candidates that appeared in the examination was:
Answer : D
Explanation
Let, the total number of candidates = x Hence, number of candidates passed in English = 0.6x Similarly, number of candidates passed in Mathematics = 0.7x Number of candidates failed in both the subjects = 0.2x Number of candidates passed in at least one of the subjects =x-0.2x = 0.8x ∴ 0.6x+0.7x-2500=0.8x Or,1.3x0.8x=2500 Or,0.5x=2500 Or,x=5000
Q 10 - After spending 15% on raw material, 30 % on machinery, 15% on furniture, 10% on machinery, Harish had a balance of 1300. The money with him was:
Answer : D
Explanation
x-(15% of x+30% of x+15% of x+10% of x)=1300 x-70% of x=1300 =>x=4333