Placement Papers - MCQ Practice Questions

Fibonacci sequence: 1, 1, 2, 3, 5, 8, 13. The 7th number is 13.

Cost per apple = $\frac{50}{12}$ = Rs. 4.17. Selling price = Rs. 5. Profit = 5-4.17 = 0.83. Profit% = (0.$\frac{83}{4}$.17)×100 ≈ 20%.

Each number is multiplied by 2. The sequence is 5×2^n. The next number should be 320×2 = 640. This is a geometric progression with ratio 2.

The code represents the number of letters in the word. SNAKE has 5 letters, so SNAKE = 5.

A teacher instructs a student, similarly a doctor treats a patient. The relationship is one of professional service provider to recipient.

The correct spelling is 'Occasion' with double 'c' and double 's'. This is a common spelling error in English.

The DISTINCT keyword in SQL removes duplicate rows from the result set. Example: SELECT DISTINCT column FROM table;

Binary search has a time complexity of O(log n) because it divides the search space by half in each iteration. This works only on sorted arrays.

Let distance = d. Time = Distance/Speed. Going: d/60, Returning: d/40. Total: d/60 + d/40 = 10. Taking LCM: (2d + 3d)/120 = 10, so 5d/120 = 10, therefore d = 240 km.

The pattern is n(n+1) where n = 1,2,3,4,5,6... First term: 1×2=2, Second: 2×3=6, Third: 3×4=12, Fourth: 4×5=20, Fifth: 5×6=30, Sixth: 6×7=42.

Ephemeral (short-lived) is opposite to Permanent (long-lasting). Similarly, Verbose (using many words) is opposite to Concise (using few words). The analogy requires antonyms.

CI = P(1 + r/100)^n - P = 8000(1 + $\frac{10}{100}$)^2 - 8000 = 8000(1.1)^2 - 8000 = 8000(1.21) - 8000 = 9,680 - 8,000 = ₹1,680.

Total distance = 120 + 180 = 300 km. Total time = 2 + 3 = 5 hours. Average speed = $\frac{300}{5}$ = 60 km/h

15% of x = 45, so x = $\frac{45}{0}$.15 = 300. Then 25% of 300 = 0.25 × 300 = 75

Selling Price = Cost Price + Profit = 800 + (20% of 800) = 800 + 160 = 960

Rate of A = $\frac{1}{12}$, Rate of B = $\frac{1}{18}$. Combined rate = $\frac{1}{12}$ + $\frac{1}{18}$ = $\frac{5}{36}$. Time = $\frac{36}{5}$ = 7.2 hours

The number could be 11, 18, 25, 32, etc. (of form 7k+4). When divided by 11, remainders vary: 11→0, 18→7, 25→3, 32→10. Cannot determine uniquely.

Simple Interest = (P × R × T)/100 = (5000 × 8 × 3)/100 = 1200. Total = 5000 + 1200 = 6200

Girls = 35% of 60 = 21. Boys = 60 - 21 = 39

A:B = 5:3. If A = 20, then 5x = 20, so x = 4. B = 3x = 3(4) = 12 years