BCA BCA Mathematics Skills 1 — Questions and Answers
Question 1: If a train travels 240 miles in 4 hours, what is its average speed in miles per hour?
- 40 mph
- 50 mph
- 60 mph (Correct answer)
- 70 mph
Correct answer: 60 mph
Average speed equals total distance divided by total time: 240 ÷ 4 = 60 mph.
Question 2: What is the value of x if 3x + 7 = 22?
- 3
- 4
- 5 (Correct answer)
- 6
Correct answer: 5
Subtract 7 from both sides to get 3x = 15, then divide by 3 to get x = 5.
Question 3: A rectangle has a length of 12 cm and a width of 8 cm. What is its area?
- 40 cm²
- 80 cm²
- 96 cm² (Correct answer)
- 112 cm²
Correct answer: 96 cm²
The area of a rectangle is length × width: 12 × 8 = 96 cm².
Question 4: What is 15% of 200?
- 20
- 25
- 30 (Correct answer)
- 35
Correct answer: 30
15% of 200 = 0.15 × 200 = 30.
Question 5: If the ratio of boys to girls in a class is 3:4 and there are 28 students total, how many boys are there?
- 10
- 12 (Correct answer)
- 14
- 16
Correct answer: 12
Boys = (3/7) × 28 = 12, since the total ratio parts are 3 + 4 = 7.
Question 6: What is the least common multiple (LCM) of 6 and 9?
- 3
- 12
- 18 (Correct answer)
- 54
Correct answer: 18
The LCM of 6 and 9 is 18, as it is the smallest number divisible by both 6 and 9.
BCA BCA Mathematics Skills 1
If a train travels 240 miles in 4 hours, what is its average speed in miles per hour?