Central Exam — Quantitative Aptitude
UPSC · SSC · Bank · Railway · NDA — Central Government Exam MCQ Practice
Showing 201–210 of 429 questions
Q.201
Easy
Numbers
A shopkeeper marks an item 40% above the cost price. If he gives a discount of 15% on the marked price, what is his profit percentage?
Correct Answer:
A. 19%
Explanation:
Let CP = 100. MP = 140. After 15% discount, SP = 140 × 0.85 = 119. Profit = 19%
Q.202
Easy
Numbers
A train travels 240 km in 4 hours. If its speed is increased by 20%, how much distance will it cover in 5 hours?
Correct Answer:
C. 360 km
Explanation:
Original speed = 240/4 = 60 km/h. New speed = 60 × 1.2 = 72 km/h. Distance in 5 hours = 72 × 5 = 360 km
Q.203
Easy
Numbers
A person invests Rs. 5000 at 12% p.a. compound interest for 2 years. What is the final amount?
Correct Answer:
B. Rs. 6280
Explanation:
A = P(1 + r/100)^n = 5000(1.12)^2 = 5000 × 1.2544 = 6272
Q.204
Easy
Numbers
The ratio of profit to cost price is 3:5. What is the profit percentage?
Correct Answer:
C. 60%
Explanation:
If CP = 5, Profit = 3. Profit% = (3/5) × 100 = 60%
Q.205
Easy
Numbers
Simple Interest on Rs. 6000 at 8% p.a. for 2.5 years is?
Correct Answer:
C. Rs. 1200
Explanation:
SI = (P × R × T)/100 = (6000 × 8 × 2.5)/100 = 1200
Q.206
Easy
Numbers
A number is increased by 20% and then decreased by 20%. What is the net change?
Correct Answer:
B. 4% decrease
Explanation:
Let number = 100. After 20% increase = 120. After 20% decrease = 120 × 0.8 = 96. Net decrease = 4%
Q.207
Easy
Numbers
If 60% of a number equals 180, what is 75% of that number?
Correct Answer:
A. 225
Explanation:
Number = 180/0.6 = 300. 75% of 300 = 225
Q.208
Easy
Numbers
A number is increased by 30%, then decreased by 20%. What is the net percentage change?
Correct Answer:
A. 4% increase
Explanation:
Let number = 100. After 30% increase: 130. After 20% decrease: 130 × 0.8 = 104. Net change = 4% increase.
Q.209
Easy
Numbers
A shopkeeper sells an item at Rs. 480 with 20% profit. What is the cost price?
Correct Answer:
B. Rs. 400
Explanation:
SP = CP × (1 + profit%). 480 = CP × 1.2. CP = 480/1.2 = Rs. 400.
Q.210
Easy
Numbers
A can complete a work in 15 days, B in 20 days. How many days will they take working together?
Correct Answer:
C. 8.57 days
Explanation:
A's work rate = 1/15, B's rate = 1/20. Combined = 1/15 + 1/20 = 7/60. Time = 60/7 ≈ 8.57 days.