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1. What is the value of x in the equation 3x + 7 = 16?
A. 3
B. 5
C. 6
D. 9
Answer: B. 5
Rationale: To solve for x, we need to isolate x by subtracting 7 from both
sides and then dividing by 3. Therefore, 3x + 7 - 7 = 16 - 7, resulting in 3x
= 9. Dividing both sides by 3 gives us x = 3.
2. What is the next number in the sequence: 2, 5, 10, 17, 26, ...?
A. 35
B. 37
C. 40
D. 41
Answer: A. 35
Rationale: The sequence is increasing by consecutive odd numbers (3, 5,
7, 9, ...). Therefore, the next number in the sequence is 26 + 9 = 35.
3. If a car travels 240 miles in 4 hours, what is its average speed in miles
per hour?
A. 45
B. 50
C. 55
D. 60
Answer: B. 60
Rationale: To find the average speed, we divide the total distance by the
total time. Therefore, 240 miles / 4 hours = 60 miles per hour.
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