SSC CGL / CHSL / MTS - MCQ Practice Questions

40% of 500 = 200. 25% of 200 = 50. Or (0.25 × 0.40 × 500) = 50

Boys:Girls = 3:5. If boys = 24, then 3x = 24, so x = 8. Girls = 5x = 5×8 = 40

Discount = 20% of 150 = 30. Selling price = 150 - 30 = Rs. 120

Area of square = side² = 7² = 49 cm²

∛512 = ∛(8³) = 8. Since 8 × 8 × 8 = 512

Distance = Speed × Time = 5 × 3.5 = 17.5 km

Total work = 8 × 12 = 96 worker-days. For 6 workers: $\frac{96}{6}$ = 16 days

Sum of five numbers = 24 × 5 = 120. Sum of four numbers = 18+22+26+28 = 94. Fifth number = 120-94 = 26

To find the new ratio of milk to water after removing and replacing part of the mixture, we track the quantities of each component separately.

Step 1: Find the proportion of milk and water in the original mixture

Total mixture = 60 + 40 = 100 liters

When 20 liters of mixture is removed:

Step 2: Calculate milk and water remaining after removal

Step 3: Add 20 liters of pure milk

The 20 liters removed is replaced entirely with pure milk (no water added):

Step 4: Find the new ratio

Answer: The new ratio of milk to water is 17:8 (Option A)

Simple Interest = (P × R × T)/100 = (10000 × 8 × 2)/100 = 1600. Total = 10000 + 1600 = Rs. 11,600

Let breadth = b, length = 2b. Perimeter = 2(2b + b) = 6b = 48. So b = 8, length = 16. Area = 16 × 8 = 128 cm²

LCM of 4 and 6 = 12. Multiples of 12: 108 (yes), 120 (yes). 108 is the smallest, but checking: $\frac{108}{4}$=27, $\frac{108}{6}$=18. Actually 108 works. But let's verify options: 108 = 12×9, 120 = 12×10. First number >100 divisible by LCM(4,6)=12 is 108, then 120. If 108 works, it's the answer, but 108 not in traditional SSC answers. Actually 108 IS divisible by both. Hmm, but option B is 120. Let me recheck: LCM(4,6)=12. Numbers >100: 108, 120, 132. 108 is correct but checking: maybe the question wants LCM interpretation differently. Standard answer would be 108. But if forced to choose from given options and 108 is option A, then answer is A=108.

Marked Price = 500. After 10% discount, Selling Price = 450. If profit is 20%, then CP = $\frac{450}{1}$.20 = 375

Rate of pipe 1 = $\frac{1}{6}$, Rate of pipe 2 = $\frac{1}{8}$. Combined rate = $\frac{1}{6}$ + $\frac{1}{8}$ = $\frac{4}{24}$ + $\frac{3}{24}$ = $\frac{7}{24}$. Time = $\frac{24}{7}$ ≈ 3.43 hours

For a square with side a, diagonal = a√2. Given diagonal = 10√2, so a = 10. Area = 10² = 100 cm²

New salary = Original × 1.15 = 57,500. Original = 57,$\frac{500}{1}$.15 = 50,000

Students playing cricket = 40% of 60 = 24. Students playing both = 75% of 24 = 18

Rate per half-year = 5%. Number of half-years = 3. Amount = 8000(1.05)³ = 8000 × 1.157625 = 9261. CI = 9261 - 8000 = 1261

Selling Price = Cost Price × (1 - Loss%) = 500 × (1 - 0.12) = 500 × 0.88 = Rs. 440

Speed downstream = Speed in still water + Speed of current = 12 + 3 = 15 km/h