Placement Papers - MCQ Practice Questions

Train + Bus = 60% + 30% = 90%. Walk = 10% = 20 km. Total = $\frac{20}{0}$.10 = 200 km

Total balls = 3 + 4 + 5 = 12. P(red) = $\frac{3}{12}$ = $\frac{1}{4}$

Profit = 25% of 500 = 0.25 × 500 = 125

Let numbers be 2x, 3x, 5x. Sum = 2x + 3x + 5x = 10x = 100. x = 10. Largest = 5x = 50

Work done per day = $\frac{1}{10}$ = 10%. In 3 days = 3 × 10% = 30%

By transitivity, if a < b and b < c, then a < c

Number = 12k + 5. When divided by 4: 12k + 5 = 4(3k) + 4 + 1 = 4(3k+1) + 1. Remainder = 1

Work is inversely proportional to number of workers. (5 × 12) = (10 × x), so x = 6 days

Sum = Average × Count = 30 × 5 = 150

Each number is double the previous: 2, 4, 8, 16, 32, 64. Pattern is multiplication by 2

Cost Price = 10 × 50 = 500. Selling Price = 10 × 60 = 600. Profit = 100. Profit% = ($\frac{100}{500}$) × 100 = 20%

A dog barks, similarly a cat meows. This is a sound association analogy

Roses are a subset of flowers, but we don't know which flowers are red. Some red flowers might not be roses.

12, 24, 36, 48 are all multiples of 12. 58 is not a multiple of 12

R=4, O=5, S=6, E=7. Following alphabet position: P=1(9), E=7(8), T=2(9→2 with shift), A=1, L=4. PETAL = 89214

Benign means harmless, kind, or gentle. Friendly is the closest synonym

Verbose means using more words than necessary. Concise is its opposite—using few words

Stack follows LIFO principle. Queue follows FIFO. Array and Tree are not strictly LIFO/FIFO structures

Inheritance allows a class to inherit properties and methods from another class (parent/base class)

Quick Sort has O(n log n) average case complexity, which is optimal among comparison-based sorts