Mock Test

Exam: SSC CGL Subject: Quantitative Aptitude Topic: Percentage

Total Questions: 20

Q1. The population of a village is 20,000. If it increases by 10% in the first year and decreases by 5% in the second year, what will be the population after 2 years?

20,900 20,800 21,000 21,800
Q2. Convert 2/5 to a percentage.

20% 40% 50% 60%
Q3. The cost price of an article is Rs. 200. If the shopkeeper marks it up by 30% and then offers a discount of 10%, what is the selling price?

Rs. 234 Rs. 238 Rs. 240 Rs. 250
Q4. In a class, 70% of students are girls. 25% of girls and 30% of boys failed in an examination. The percentage of students who passed the examination is:

71% 72% 73% 74%
Q5. If 60% of a number is 360, then the number is:

600 540 480 720
Q6. If the price of a fan is reduced by 20%, then the number of fans sold increases by 40%. What is the percentage change in the total revenue?

4% increase 8% increase 12% increase 16% increase
Q7. If a number is increased by 30%, it becomes 260. What is the original number?

180 190 200 220
Q8. A dealer buys a table for Rs. 1200. He allows a discount of 10% on the marked price and makes a profit of 20%. What is the marked price of the table?

Rs. 1500 Rs. 1600 Rs. 1700 Rs. 1800
Q9. The simple interest on a sum of money for 3 years is Rs. 225. If the compound interest on the same sum for 2 years is Rs. 156, find the rate of interest.

8% 10% 12% 15%
Q10. If 40% of a number is 120, then what is 60% of that number?

180 200 240 280
Q11. A train travels at a speed of 50 km/h. If it reduces its speed by 20%, it takes 2 hours more to cover the same distance. What is the distance?

400 km 450 km 500 km 550 km
Q12. If Ram's salary is 20% more than Shyam's, what percentage is Shyam's salary less than Ram's?

10% 12.5% 15% 16.67%
Q13. What is the determinant of the matrix A = [[3, 2], [4, 5]]?

7 2 1 10
Q14. If the radius of a hemisphere is increased by 50%, its volume increases by:

50% 125% 237.5% 250%
Q15. The price of petrol increases by 25%. By what percentage should a person decrease his consumption so that his expenditure on petrol does not increase?

20% 15% 25% 10%
Q16. The ratio of two quantities is 3:5. If the first quantity is increased by 20% and the second quantity is decreased by 20%, what is the new ratio?

3:5 4:5 5:6 9:10
Q17. The price of petrol increased from Rs. 50 per liter to Rs. 60 per liter. By what percentage should a consumer reduce his consumption of petrol so that his expenditure on petrol does not increase?

16.67% 20% 15% 25%
Q18. The average of 7 numbers is 18. If one number is removed, the average of the remaining 6 numbers is 16. The removed number is:

18 28 38 48
Q19. What is 25% of Rs. 1,000?

Rs. 25 Rs. 50 Rs. 125 Rs. 250
Q20. A's score is 30% more than B's score. C's score is 20% less than A's score. By what percentage is B's score less than C's score?

15% 20% 25% 30%

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