Govt. Exams
Entrance Exams
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Topics in SSC CGL / CHSL / MTS
A person walks 5 km in 1 hour. How far will he walk in 3.5 hours at the same speed?
Correct Answer:
A. 17.5 km
EXPLANATION
Distance = Speed × Time = 5 × 3.5 = 17.5 km
What is the cube root of 512?
Correct Answer:
C. 8
EXPLANATION
∛512 = ∛(8³) = 8. Since 8 × 8 × 8 = 512
If the side of a square is 7 cm, what is its area?
Correct Answer:
A. 49 cm²
EXPLANATION
Area of square = side² = 7² = 49 cm²
A book costs Rs. 150. It is sold at 20% discount. What is the selling price?
Correct Answer:
C. Rs. 120
EXPLANATION
Discount = 20% of 150 = 30. Selling price = 150 - 30 = Rs. 120
The ratio of boys to girls in a class is 3:5. If there are 24 boys, how many girls are there?
Correct Answer:
B. 40
EXPLANATION
Boys:Girls = 3:5. If boys = 24, then 3x = 24, so x = 8. Girls = 5x = 5×8 = 40
What is 25% of 40% of 500?
Correct Answer:
B. 50
EXPLANATION
40% of 500 = 200. 25% of 200 = 50. Or (0.25 × 0.40 × 500) = 50
If x + y = 10 and x - y = 4, what is the value of x?
Correct Answer:
B. 7
EXPLANATION
Adding both equations: 2x = 14, so x = 7. Alternatively, (x+y) + (x-y) = 10+4 gives 2x = 14
A shopkeeper bought an item for Rs. 400 and sold it for Rs. 520. What is his profit percentage?
Correct Answer:
B. 30%
EXPLANATION
Profit = 520 - 400 = 120. Profit % = (120/400) × 100 = 30%
What is the least common multiple (LCM) of 12, 18, and 24?
Correct Answer:
A. 72
EXPLANATION
Prime factorization: 12=2²×3, 18=2×3², 24=2³×3. LCM = 2³×3² = 8×9 = 72
A train travels 240 km in 4 hours. What is its average speed?
Correct Answer:
A. 60 km/h
EXPLANATION
Average speed = Total distance / Total time = 240/4 = 60 km/h
