Quantitative Aptitude Mock Test | RRB NTPC

Q1. In a survey of 2000 people, 40% liked Coffee and 35% liked Tea. If 10% liked both, how many people liked only Coffee?

400 450 500 550

Q2. Simplify a^7 / a^4.

a^3 a^11 a^28 7/4

Q3. What is the product of x and y if x = 3 and y = 7?

10 21 4 37

Q4. If a partner's drawings exceed the agreed limit, interest is charged on:

The entire drawings amount The excess amount of drawings No interest is charged The capital amount

Q5. Prepaying a loan helps in:

Increasing the total interest paid Reducing the total interest paid Increasing the EMI Increasing the loan tenure

Q6. If a price is increased by 10% and then decreased by 10%, what is the net percentage change?

1% increase 1% decrease No change 2% decrease

Q7. A loan of Rs. 60,000 is to be repaid in 4 equal annual installments. If the interest rate is 12% per annum, what is the amount of each installment?

Rs. 19,000.00 Rs. 19,500.00 Rs. 20,180.00 Rs. 21,000.00

Q8. A shopkeeper buys an item for Rs. 5000. He marks it up by 30% and offers a discount of 15%. An additional discount of 5% is given on the discounted price for online purchase. What is the final selling price?

Rs. 5567.50 Rs. 5600 Rs. 5700 Rs. 5800

Q9. What is 10% of 1000?

10 100 1000 1

Q10. In a mixed graph, one line represents the export of product A and another line represents the import of product A over several years. If in a particular year, the export of product A was 200 units and the import was 150 units, what is the trade surplus for product A in that year?

50 units 100 units 150 units 200 units

Q11. A and B can complete a work in 40 days. B and C can complete the same work in 30 days. C and A can complete it in 25 days. In how many days can B alone complete the work?

40 days 45 days 50 days 60 days

Q12. A square is enlarged by a factor of 2. What is the ratio of the perimeter of the new square to the perimeter of the original square?

1:1 1:2 2:1 4:1

Q13. B completes a work in 7 seconds. What is the work done by B in 7 seconds?

Whole work Half work 1/7 work Nothing

Q14. If a number decreases from 100 to 75, what is the percentage decrease?

10% 15% 20% 25%

Q15. What is 80% of 50?

20 30 40 50

Q16. Which data structure is commonly used to represent complex 3D models, allowing for efficient spatial queries and rendering, by recursively subdividing space?

Quadtree Octree KD-tree B-tree

Q17. A, B, and C can complete a task in 6, 8, and 12 days respectively. They work on alternate days, starting with A, then B, then C. If the total compensation for the task is ₹9600, and the task is completed in 7 days, what is the share of C?

₹2400 ₹3200 ₹4000 ₹3600

Q18. In a race of 300 meters, A beats B by 30 meters. If A's speed is 10 m/s, what is B's speed?

8 m/s 8.5 m/s 9 m/s 9.5 m/s

Q19. The given line graph shows the profit of a company over five years. If the profit in the second year was $50 million and this represents a 25% increase from the first year, what was the profit in the first year?

$40 million $37.5 million $45 million $42 million

Q20. A pie chart shows the distribution of total passengers in an airline across different classes: First Class (10%), Business Class (20%), Economy Plus (30%), Economy Standard (40%). If the total number of passengers is 50,000, what is the difference between the number of passengers in Economy Standard and Business Class?

5,000 7,500 10,000 12,500

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