Q. If a car travels 60 km in 1 hour, how far will it travel in 3 hours?
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A.
120 km
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B.
180 km
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C.
150 km
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D.
200 km
Solution
Distance = speed × time = 60 km/h × 3 h = 180 km.
Correct Answer: B — 180 km
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Q. If the radius of a circle is 7 cm, what is its circumference? (Use π ≈ 3.14)
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A.
43.96 cm
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B.
21.98 cm
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C.
31.4 cm
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D.
14 cm
Solution
Circumference = 2πr = 2 × 3.14 × 7 cm = 43.96 cm.
Correct Answer: A — 43.96 cm
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Q. If the sum of two numbers is 30 and their difference is 10, what are the numbers?
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A.
20 and 10
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B.
25 and 5
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C.
15 and 15
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D.
18 and 12
Solution
Let the numbers be x and y. We have x + y = 30 and x - y = 10. Solving these gives x = 20 and y = 10.
Correct Answer: A — 20 and 10
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Q. In the expression 3x + 5 = 20, what is the value of x?
Solution
To find x, subtract 5 from both sides: 3x = 20 - 5 = 15. Then divide by 3: x = 15 / 3 = 5.
Correct Answer: A — 5
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