Q.1 What is the value of 15 × 12?
160
170
180
190
Explanation - Multiplying 15 × 12 gives 180 directly.
Correct answer is: 180
Q.2 Simplify: (48 ÷ 6) + (35 ÷ 7)
13
14
15
16
Explanation - 48 ÷ 6 = 8 and 35 ÷ 7 = 5, adding gives 13.
Correct answer is: 13
Q.3 The average of 12, 15, and 21 is:
16
17
18
19
Explanation - (12 + 15 + 21) ÷ 3 = 48 ÷ 3 = 16.
Correct answer is: 16
Q.4 Find the square root of 144.
10
11
12
13
Explanation - 12 × 12 = 144, so the square root is 12.
Correct answer is: 12
Q.5 A shopkeeper buys an item at ₹500 and sells it at ₹600. What is the profit percentage?
15%
18%
20%
25%
Explanation - Profit = 600 - 500 = 100. Profit% = (100/500) × 100 = 20%.
Correct answer is: 20%
Q.6 If 5 pencils cost ₹25, what is the cost of 8 pencils?
35
38
40
42
Explanation - Cost per pencil = 25 ÷ 5 = ₹5. For 8 pencils: 8 × 5 = ₹40.
Correct answer is: 40
Q.7 What is the HCF of 36 and 48?
6
12
18
24
Explanation - Factors of 36: 1,2,3,4,6,9,12,18,36. Factors of 48: 1,2,3,4,6,8,12,16,24,48. Highest common = 12.
Correct answer is: 12
Q.8 Solve: 3/4 of 64
36
44
48
52
Explanation - (3/4) × 64 = 48.
Correct answer is: 48
Q.9 A man walks 4 km north and then 3 km east. What is the shortest distance from the start point?
5 km
6 km
7 km
8 km
Explanation - By Pythagoras: √(4² + 3²) = √(16+9)=√25=5 km.
Correct answer is: 5 km
Q.10 The simple interest on ₹2000 at 5% per annum for 2 years is:
150
200
210
220
Explanation - SI = (P×R×T)/100 = (2000×5×2)/100 = 200.
Correct answer is: 200
Q.11 What is 15% of 640?
86
92
96
100
Explanation - 15% of 640 = (15/100) × 640 = 96.
Correct answer is: 96
Q.12 The ratio of 2:3 is equivalent to:
4:6
6:8
5:7
7:9
Explanation - Multiplying both sides of 2:3 by 2 gives 4:6.
Correct answer is: 4:6
Q.13 Convert 0.75 into a fraction.
3/5
3/4
4/5
5/6
Explanation - 0.75 = 75/100 = 3/4.
Correct answer is: 3/4
Q.14 The sum of first 10 natural numbers is:
50
55
60
65
Explanation - Sum = n(n+1)/2 = 10×11/2 = 55.
Correct answer is: 55
Q.15 Find the value of 2³ × 3².
24
32
36
72
Explanation - 2³=8, 3²=9, product = 8×9=72.
Correct answer is: 72
Q.16 The perimeter of a square with side 7 cm is:
21
28
35
49
Explanation - Perimeter = 4 × side = 4 × 7 = 28.
Correct answer is: 28
Q.17 A train 150 m long crosses a pole in 15 seconds. Its speed is:
10 km/h
24 km/h
36 km/h
45 km/h
Explanation - Speed = Distance/Time = 150/15 = 10 m/s = 36 km/h.
Correct answer is: 36 km/h
Q.18 If 12 workers can finish a job in 15 days, how many days will 6 workers take?
20
25
30
35
Explanation - Work ∝ Workers×Days. 12×15 = 6×D ⇒ D=30.
Correct answer is: 30
Q.19 The value of (25% of 240) + (10% of 150) is:
75
80
85
90
Explanation - 25% of 240=60, 10% of 150=15, sum=75.
Correct answer is: 85
Q.20 What is the cube of 11?
121
331
1210
1331
Explanation - 11³ = 11 × 11 × 11 = 1331.
Correct answer is: 1331
Q.21 A bag contains 3 red balls and 2 blue balls. Probability of drawing a red ball is:
1/5
2/5
3/5
4/5
Explanation - Total balls=5. Red=3. Probability=3/5.
Correct answer is: 3/5
Q.22 Simplify: (2/3) ÷ (4/9)
3/2
2/3
3/4
9/8
Explanation - (2/3) ÷ (4/9) = (2/3) × (9/4) = 18/12 = 3/2.
Correct answer is: 3/2
Q.23 The number of prime numbers between 20 and 30 is:
1
2
3
4
Explanation - Prime numbers between 20-30 are 23, 29. So 2.
Correct answer is: 2
Q.24 If x=2, y=3, then value of 2x² + 3y is:
14
15
17
18
Explanation - 2x²+3y=2(4)+9=8+9=17.
Correct answer is: 17
Q.25 A clock shows 4:15. The angle between the hour and minute hand is:
37.5°
45°
52.5°
60°
Explanation - Hour hand at 4=120°. At 15 min, extra 7.5°. Minute hand at 90°. Difference=52.5°.
Correct answer is: 52.5°