Placement Papers - MCQ Practice Questions

Each number is multiplied by 2. 5×2=10, 10×2=20, 20×2=40, 40×2=80

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 km. Time A to B = d/60 hours, Time B to A = d/40 hours. Total time: d/60 + d/40 = 10. LCM(60,40)=120, so (2d + 3d)/120 = 10, giving 5d/120 = 10, thus d = 240 km.

Fibonacci-like sequence: T1=2, T2=3, T3=5, T4=8, T5=13, T6=21. Each term = sum of previous two terms.

Each letter is coded as its position in the alphabet: P=16, A=1, P=16, E=5, R=18. Similarly, PENCIL: P=16, E=5, N=14, C=3, I=9, L=12.

From given conditions: A < C < D and D < B. This means B > D > C > A. Therefore, B has the highest salary.

++x makes x=6, then 6 is added. x++ uses 6 then increments to 7. Finally +x adds 7. So: 6 + 6 + 7 = 19.

A's work rate = $\frac{1}{12}$, B's work rate = $\frac{1}{18}$. Combined rate = $\frac{1}{12}$ + $\frac{1}{18}$ = $\frac{3}{36}$ + $\frac{2}{36}$ = $\frac{5}{36}$. Time = $\frac{36}{5}$ = 7.2 days.