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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 : A

### Explanation

Let the unknown value is p 88% of 370 + 24% of 210 - p = 118 p = 325.60 + 50.40 - 118 = 258

Q 2 - If a number p is 10% less than another number q and q is 10% more than 125, then p is equal to?

### Answer : B

### Explanation

q = 125 + 10% of 125 = 137.50 p = 137.50 - 10% of 137.50 = 123.75

Q 3 - In a competitive examination in Zone A, 6% candidates got selected from the total appeared candidates. Zone B had an equal number of candidates appeared and 7% candidates got selected with 80 more candidates got selected than A. What was the number of candidates appeared from each Zone?

### Answer : A

### Explanation

Let p be the number of candidates appeared from each zone. Then, 7% of p - 6% of p = 80 p = 80 x 100 = 8000

Q 4 - Suresh spends 24% of his monthly income on food and 15% on the education of his children. Of the remaining salary, he spends 25% on entertainment and 20% on conveyance. He is now left with Rs. 10736. What is the monthly salary of Suresh?

### Answer : A

### Explanation

Let z be the monthly salary of Sameer. [100-(25 + 20)]% of [100 - (24 + 15)]% of x = 10736 → 55% of 61% of x = 10736 Rs. 32000

Q 5 - The monthly salary of Abdul is Rs 60000. He spend 20% of it on the education of his children, 25% on house rent, 5% on travels, 30% on food, 8% on miscellaneous items and rest he saves for the future. Find his savings.

### Answer : B

### Explanation

Total expenditure = (20 + 25 + 5 + 30 +8)% = 88% Savings = 100% - 88% = 12% => His savings = 12/100 * 60000 = 7200

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 - A student who secures 30% marks in an exam fails by 30 marks .Another student who secures 35% marks gets 42 marks more than required to pass .the percentage of marks required is

### Answer : A

### Explanation

30% of x + 30= 35% of x -42 Or 5% of x =72 =>x=1440 Pass marks =30% of 1440 +30=432+30=462 Pass percentage = 462/1440*100=32.08%

### Answer : C

### Explanation

Let x% of 24 = 0.72. Then, (x/100*24)=0.72= 72/100=>24x=72 =>x=3.

Q 10 - 72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one subject from Biology or Mathematics and 40 took both, then the total number of students in the class is

### Answer : C

### Explanation

Let the number of students in the class be 100. ∴ Number of students in Biology = 72 and number of students in Maths = 44. ∴ Number of students opting for both the subjects = 72 + 44 – 100 = 16 When 16 students opt for both the subjects, total number of students = 100 ∴ When 40 students took both the subjects, total number of students = (100/16)*40 = 250