Required Answers :
1. 2x + 4 = 10
2x = 10 - 4
2x = 6
x = 6/2
x = 3.
Hence, Option (A) x = 3 is the answer.
2. 25/5 × 7 = ?
5 × 7
175/5
35
Hence, The required answer is 35.
3. 100 - 50 + 10 - 5 = ?
50 + 5
55
Hence, Option (A) 55 is the answer.
4. 24 / 6 = ?
24 ÷ 6
4
Hence, Option (A) 4 is the answer.
5. A triangle has base 6 inches and height 8 inches. What is the area?
Area of triangle = ½ × Base × Height
1/2 × 6 × 8
1/2 × 48
48/2
24 sq. in
Hence, Option (A) 24 sq in is the answer.
6. What is the greatest common factor of 36 and 56?
36 = 1,2,3,4,6,9,12, 18 and 36.
56 = 1,2,4,7,8,14,28 and 56.
Hence, Option (A) 4 is the answer.
7. What is the square root of 121?
11 × 11
121
Hence, (A) 11 is the answer
8. If 2x + 4 = 14, what is x?
2x + 4 = 14
2x = 14 - 4
2x = 10
x = 10/2
x = 5
Hence, Option (A) 5 is the answer
9. (3x - 5) + (7x + 1) = ?
3x - 5 + 7x + 1
10x - 5 + 1
10x - 4
Hence, Option (A) 10x - 4 is the answer.
10. What fraction is 5/12?
1/2 (approximately)
Hence, Option (A) 1/2 is the answer.