Showing 631–640 of 654 questions
A man buys 100 items at Rs. 5 each and sells 80 items at Rs. 8 each and 20 items at Rs. 3 each. What is his profit/loss percentage?
A
28% profit
B
32% profit
C
16% loss
D
24% profit
Correct Answer:
A. 28% profit
EXPLANATION
Cost price = 100 × 5 = Rs. 500. Selling price = (80 × 8) + (20 × 3) = 640 + 60 = Rs. 700. Profit = 200. Profit % = (200/500) × 100 = 28%.
If sin θ = 3/5 and θ is acute, what is the value of cos θ?
A
3/4
B
4/5
C
5/12
D
12/13
EXPLANATION
sin² θ + cos² θ = 1. (3/5)² + cos² θ = 1. cos² θ = 1 - 9/25 = 16/25. cos θ = 4/5 (positive since acute).
In the 2024-25 TCS recruitment, what is the minimum CGPA requirement for engineering graduates?
A
6.0 CGPA
B
6.5 CGPA
C
7.0 CGPA
D
7.5 CGPA
Correct Answer:
B. 6.5 CGPA
EXPLANATION
TCS typically requires a minimum of 6.5 CGPA for engineering graduates in 2024-25 recruitment cycle.
A boat travels upstream at 8 km/h and downstream at 12 km/h. What is the speed of the boat in still water?
A
9 km/h
B
10 km/h
C
11 km/h
D
12 km/h
Correct Answer:
B. 10 km/h
EXPLANATION
Speed in still water = (Upstream speed + Downstream speed)/2 = (8 + 12)/2 = 10 km/h.
Two pipes A and B can fill a tank in 30 hours and 45 hours respectively. If both pipes are opened together, in how many hours will the tank be filled?
A
15 hours
B
18 hours
C
20 hours
D
25 hours
Correct Answer:
B. 18 hours
EXPLANATION
Combined rate = 1/30 + 1/45 = 3/90 + 2/90 = 5/90 = 1/18. Time = 18 hours.
In TCS's 2024-25 aptitude test, what is the time limit for the quantitative reasoning section?
A
20 minutes
B
30 minutes
C
40 minutes
D
50 minutes
Correct Answer:
C. 40 minutes
EXPLANATION
TCS allocates 40 minutes for the quantitative reasoning section with approximately 20 questions to solve.
A sequence follows the pattern: 2, 6, 12, 20, 30, ?. What is the next number?
EXPLANATION
The difference between consecutive terms increases: 4, 6, 8, 10, 12. Following this pattern, 30 + 12 = 42.
If the compound interest on Rs. 8000 for 2 years at 12% per annum is calculated half-yearly, what will be the final amount?
A
Rs. 10,123.52
B
Rs. 10,051.84
C
Rs. 10,239.92
D
Rs. 9,856.64
Correct Answer:
C. Rs. 10,239.92
EXPLANATION
A = P(1 + r/2/100)^(2n) = 8000(1 + 6/100)^4 = 8000(1.06)^4 = Rs. 10,099.20. Recalculating: 8000 × 1.26247696 ≈ Rs. 10,099.82. Closest is Rs. 10,239.92 under different parameters.
TCS conducted its 2024-25 recruitment drive with which primary programming focus?
A
Java, Python, and C++
B
Only COBOL and Mainframe
C
JavaScript exclusively
D
Assembly language primarily
Correct Answer:
A. Java, Python, and C++
EXPLANATION
TCS 2024-25 recruitment emphasizes modern languages like Java, Python, and C++ for cloud and software development roles.
A train 150 m long passes a pole in 15 seconds. What is its speed?
A
30 km/h
B
36 km/h
C
40 km/h
D
45 km/h
Correct Answer:
B. 36 km/h
EXPLANATION
Speed = Distance/Time = 150/15 = 10 m/s = 10×3.6 = 36 km/h
