Placement Papers - MCQ Practice Questions

Let the number be 100. After 20% increase: 120. After 20% decrease of 120: 120 × 0.8 = 96. Net change = 96 - 100 = -4, which is 4% decrease.

Cost price = 400. Marked price = 400 × 1.40 = 560. Selling price = 560 × 0.90 = 504. Profit = 504 - 400 = 104. Profit % = ($\frac{104}{400}$) × 100 = 26%.

Work = 5 × 12 = 60 man-days. For 3 days: Men needed = $\frac{60}{3}$ = 20 men.

24 = 2^3 × 3, 36 = 2^2 × 3^2, 48 = 2^4 × 3. LCM = 2^4 × 3^2 = 16 × 9 = 144.

CI = P(1+R/100)^T - P = 10000(1.1)^2 - 10000 = 10000(1.21) - 10000 = 12100 - 10000 = 2100.

12, 24, 36, 48 are all multiples of 12. 62 is not a multiple of 12.

From 'all roses are flowers' and 'some flowers are red', we can conclude that some roses might be red, but we cannot definitively say all roses are red. The safest conclusion from the logical overlap is that some roses could be red.

At 3:00, the minute hand is at 12 and hour hand is at 3. Each hour represents 30° (360°/12). Angle = 3 × 30° = 90°.

Differences: 5-2=3, 10-5=5, 17-10=7, 26-17=9. Next difference = 11. So 26+11 = 37. Pattern: n^2 + 1 for n=1,2,3,4,5: 2,5,10,17,26,37.

x^2 + 5x + 6 = (x+2)(x+3) = 0. So x = -2 or x = -3.

60% of 1000 = 600. 25% of 600 = 150.

Net displacement north: 4-4 = 0. Net displacement east: 3. Distance from starting point = 3 km.

a:b = 2:3 means a/b = $\frac{2}{3}$. b:c = 4:5 means b/c = $\frac{4}{5}$. To find a:b:c, make b equal: a:b = 8:12 and b:c = 12:15. So a:b:c = 8:12:15.

13 × 13 = 169.

If some programmers are graduates, and all graduates are educated, then by logical deduction, some programmers must be educated.

First letter increases: A→B→C→D→E. Second letter decreases: Z→Y→X→W→V. Answer is EV.

Benevolent means kind and generous. Malevolent means evil or harmful, which is the opposite.

The correct spelling is 'Occasion' with two c's and one s in the middle.

The correlative conjunction 'not only...but also' is used here. 'But' is the correct answer.

Meticulous means very careful and precise. Careful is the best synonym.