Govt. Exams
Entrance Exams
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Topics in Quantitative Aptitude
A trader buys an item for ₹800 and sells it at a loss of 12.5%. What is the selling price?
Correct Answer:
A. ₹700
EXPLANATION
SP = CP × (1 - loss%) = 800 × (1 - 0.125) = 800 × 0.875 = ₹700
A vendor buys apples at ₹30 per kg and sells at ₹42 per kg. What is his profit percentage?
Correct Answer:
B. 40%
EXPLANATION
Profit% = [(42-30)/30] × 100 = (12/30) × 100 = 40%
If the population of a city increases by 5% annually, what will be the population after 2 years if the current population is 10,00,000?
Correct Answer:
A. 11,02,500
EXPLANATION
Population after 2 years = 10,00,000 × (1.05)² = 10,00,000 × 1.1025 = 11,02,500
A's salary is 40% more than B's salary. If their combined salary is ₹84,000, what is B's salary?
Correct Answer:
A. ₹35,000
EXPLANATION
Let B's salary = x. A's salary = 1.4x. x + 1.4x = 84,000. 2.4x = 84,000. x = ₹35,000
Two successive discounts of 20% and 15% are given on an article. What is the effective discount percentage?
Correct Answer:
A. 32%
EXPLANATION
Effective discount = 20 + 15 - (20×15)/100 = 35 - 3 = 32%
A shopkeeper sells an item at ₹450 after giving a 10% discount on the marked price. What is the marked price?
Correct Answer:
A. ₹500
EXPLANATION
If SP = ₹450 and discount = 10%, then MP × 0.9 = 450. MP = 450/0.9 = ₹500
If the cost price is ₹2000 and profit is 15%, what is the selling price?
Correct Answer:
C. ₹2300
EXPLANATION
SP = 2000 × 1.15 = 2300.
A man's salary increased from ₹30,000 to ₹36,000. What is the percentage increase?
Correct Answer:
C. 20%
EXPLANATION
Increase = 6000. Percentage = (6000/30000) × 100 = 20%.
A student scored 72% in an exam out of 150 marks. How many marks did he score?
Correct Answer:
C. 108
EXPLANATION
Marks = 150 × 0.72 = 108.
If the price of an article increased from ₹400 to ₹500, what is the percentage increase?
Correct Answer:
C. 25%
EXPLANATION
Increase = 100. Percentage = (100/400) × 100 = 25%.
