Govt. Exams
Entrance Exams
Advertisement
Topics in SSC CGL / CHSL / MTS
The average of five numbers is 24. If four of them are 18, 22, 26, and 28, what is the fifth number?
Correct Answer:
C. 26
EXPLANATION
Sum of five numbers = 24 × 5 = 120. Sum of four numbers = 18+22+26+28 = 94. Fifth number = 120-94 = 26
If 8 workers can complete a task in 12 days, how many days will 6 workers take to complete the same task?
Correct Answer:
C. 16 days
EXPLANATION
Total work = 8 × 12 = 96 worker-days. For 6 workers: 96/6 = 16 days
If the compound interest on Rs. 1000 for 2 years at 10% per annum is calculated, what is the final amount?
Correct Answer:
A. Rs. 1210
EXPLANATION
A = P(1 + R/100)^T = 1000(1.1)² = 1000 × 1.21 = 1210
The area of a rectangle is 96 sq cm. If its length is 12 cm, what is its breadth?
Correct Answer:
A. 8 cm
EXPLANATION
Area = Length × Breadth → 96 = 12 × B → B = 8 cm
A number when divided by 5 leaves remainder 3. Which of the following could be that number?
Correct Answer:
A. 23
EXPLANATION
23 ÷ 5 = 4 remainder 3. (or 23 = 5×4 + 3)
If a person spends 30% of his income on food and 40% on rent, what percentage is left?
Correct Answer:
A. 30%
EXPLANATION
Total spent = 30% + 40% = 70%. Remaining = 100% - 70% = 30%
Two numbers are in the ratio 5:8. If their difference is 24, what is the larger number?
Correct Answer:
A. 64
EXPLANATION
Let numbers be 5x and 8x. Difference: 8x - 5x = 24 → 3x = 24 → x = 8. Larger = 8(8) = 64
The simple interest on Rs. 2000 for 3 years at 8% per annum is
Correct Answer:
A. Rs. 480
EXPLANATION
SI = (P × R × T)/100 = (2000 × 8 × 3)/100 = 480
If 2x² + 3x - 5 = 0, what is one value of x?
Correct Answer:
A. 1
EXPLANATION
2(1)² + 3(1) - 5 = 2 + 3 - 5 = 0. So x = 1 is a solution.
A man buys a watch for Rs. 900 and sells it for Rs. 1080. What is his profit percentage?
Correct Answer:
A. 20%
EXPLANATION
Profit = 1080 - 900 = 180. Profit% = (180/900) × 100 = 20%
