1. What is 25% of 480?
a)
100
b)
120
c)
125
d)
140
Answer:
120
Explanation:
25% = 25/100 = 1/4480 ÷ 4 = 120
2. The LCM of 12 and 18 is:
a)
24
b)
30
c)
36
d)
72
Answer:
36
Explanation:
Explanation:12 = 2² × 318 = 2 × 3²LCM = 2² × 3² = 36
3. If �, then the value of � is:
a)
13
b)
14
c)
15
d)
16
Answer:
15
Explanation:
Explanation:x = 23 − 8 = 15
4. The average of 12, 18, 20, and 30 is:
a)
18
b)
20
c)
22
d)
25
Answer:
20
Explanation:
Explanation:(12 + 18 + 20 + 30) ÷ 4 = 80 ÷ 4 = 20
5. A train travels 180 km in 3 hours. Its speed is:
a)
50 km/h
b)
55 km/h
c)
60 km/h
d)
65 km/h
Answer:
60 km/h
Explanation:
Speed = Distance ÷ Time = 180 ÷ 3 = 60 km/h
6. Find the value of �.
a)
46
b)
56
c)
66
d)
76
Answer:
56
Explanation:
Explanation:9² = 81, 5² = 2581 − 25 = 56
7. A shopkeeper gives a 20% discount on a ₹500 item. The selling price is:
a)
₹350
b)
₹380
c)
₹400
d)
₹450
Answer:
₹400
Explanation:
Discount = 20% of 500 = ₹100Selling Price = 500 − 100 = ₹400
8. The simple interest on ₹1000 at 10% per annum for 2 years is:
a)
₹100
b)
₹150
c)
₹200
d)
₹250
Answer:
₹100
Explanation:
Explanation:SI = (P × R × T) / 100= (1000 × 10 × 2) / 100 = ₹200
9. If the ratio of boys to girls is 3 : 5 and there are 40 students, then the number of boys is:
a)
10
b)
12
c)
15
d)
18
Answer:
15
Explanation:
Total parts = 3 + 5 = 8Boys = (3/8) × 40 = 15
10. A number is divided by 8 and leaves a remainder of 5. Which of the following could be the number?
a)
61
b)
62
c)
64
d)
68
Answer:
61
Explanation:
A number that leaves a remainder of 5 when divided by 8 is of the form 8n + 5.61 ÷ 8 = 7 remainder 5 ✅62 ÷ 8 = 7 remainder 664 ÷ 8 = 8 remainder 068 ÷ 8 = 8 remainder 4Therefore, the correct answer is A) 61.