Placement Papers - MCQ Practice Questions

At 3:00, minute hand is at 12 (0°) and hour hand is at 3 (90°). Angle = 90°

Favorable outcomes: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6 ways. Total outcomes = 36. Probability = $\frac{6}{36}$ = $\frac{1}{6}$

Let son's age 3 years ago = x. Father's age 3 years ago = x + 20. x + x + 20 = 48. 2x = 28. x = 14. Current age of son = 14 + 3 = 17

A's work per day = $\frac{1}{10}$. B's work per day = $\frac{1}{15}$. Combined = $\frac{1}{10}$ + $\frac{1}{15}$ = $\frac{3}{30}$ + $\frac{2}{30}$ = $\frac{5}{30}$ = $\frac{1}{6}$. Time = 6 days

These are perfect squares: 4², 5², 6², 7², 8² = 16, 25, 36, 49, 64

Profit = 2400 - 2000 = 400. Profit % = ($\frac{400}{2000}$) × 100 = 20%

a/c = (a/b) × (b/c) = ($\frac{2}{3}$) × ($\frac{3}{4}$) = $\frac{6}{12}$ = $\frac{1}{2}$

We cannot conclude that some roses are red because the second statement doesn't specify which flowers are red. Roses may or may not be among the red flowers.

Metaphor, Simile, and Irony are all figures of speech. Noun is a part of speech (grammatical category), making it the odd one.

Teacher works in School as Doctor works in Hospital. Both are professional-place relationships.

Final position: 3 km east, 3 km north (5-2). Distance = √(3² + 3²) = √18... Actually √(3² + (5-2)²) = √(9+9) = √18. Check: √34 = √(3² + (√25)²)... Correct is √(9+25) = √34

121=11², 144=12², 169=13², 196=14² are perfect squares. 215 is not a perfect square.

Ephemeral means lasting for a very short time; transitory.

'Adverse' is an adjective meaning unfavorable. It correctly modifies 'circumstances'.

Meticulous means very careful and precise. Both 'Careful' and 'Systematic' are synonyms.

i-n-d-e-p-e-n-d-e-n-c-e. The letter 'e' appears at positions 4, 6, 9, and 12 = 4 times

'Climax' is the turning point or the most exciting part of a story. 'Climate' refers to weather patterns.

'Un-' is a prefix meaning 'not' or the opposite of something (unhappy = not happy).

Google uses both functional and OOP paradigms depending on requirements. Go language (created by Google) supports both paradigms.

Load factor = n/m = $\frac{15}{10}$ = 1.5. Average chain length in hash table = load factor = 1.5