Entrance Exams
Govt. Exams
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Topics in Quantitative Aptitude
A retailer buys goods at Rs. 450 per unit and sells at 40% profit. What is the selling price per unit?
Correct Answer:
C. Rs. 630
EXPLANATION
SP = 450 × 1.40 = 630.
Two numbers are in ratio 4:7. If their difference is 45, what is the larger number?
Correct Answer:
B. 105
EXPLANATION
Let numbers be 4x and 7x. 7x - 4x = 45, 3x = 45, x = 15. Larger = 7 × 15 = 105.
If 45% of a number is 180, what is 65% of that number?
Correct Answer:
A. 260
EXPLANATION
Number = 180/0.45 = 400. 65% of 400 = 260.
Simple interest on Rs. 5000 for 4 years at 8% per annum is?
Correct Answer:
C. Rs. 1600
EXPLANATION
SI = (P × R × T)/100 = (5000 × 8 × 4)/100 = 1600.
A train 240m long crosses a platform 360m long in 30 seconds. What is the speed of the train?
Correct Answer:
B. 72 km/h
EXPLANATION
Distance = 240 + 360 = 600m. Speed = 600/30 = 20 m/s = 20 × 3.6 = 72 km/h.
A merchant marks his goods 40% above cost price but gives 25% discount. What is his profit percentage?
Correct Answer:
B. 10%
EXPLANATION
Let CP = 100. MP = 140. After 25% discount, SP = 140 × 0.75 = 105. Profit = 5%.
If 35% of voters voted, and 60% of those voted for candidate A, what percentage voted for A?
Correct Answer:
A. 21%
EXPLANATION
Percentage = 0.35 × 0.60 × 100 = 21%
Two numbers are in ratio 3:5. If their sum is 160, the larger number is:
Correct Answer:
A. 100
EXPLANATION
Let numbers be 3x and 5x. 3x + 5x = 160. 8x = 160. x = 20. Larger number = 5×20 = 100
Cost price of an item is Rs. 500. It is sold at 35% profit. Selling price is:
Correct Answer:
A. Rs. 675
EXPLANATION
SP = 500 × 1.35 = Rs. 675
If 60% of a number is 240, the number is:
Correct Answer:
A. 400
EXPLANATION
Let number = x. 0.60x = 240. x = 240/0.60 = 400