A cargo container vehicle spans 600 meters in exactly 40 seconds. Find its baseline speed index in km/h. MCQ with Answer and Explanation
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Question #1
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A car covers a certain distance at a speed of 48 km/h in 50 minutes. With what speed should it run to decrease the time of journey by 10 minutes?
Correct Answer: Option C
Explanation:
Original time = 50 mins. New time = 50 - 10 = 40 mins. S1 * T1 = S2 * T2 => 48 * 50 = S2 * 40 => S2 = (48 * 50) / 40 = 60 km/h.
Original time = 50 mins. New time = 50 - 10 = 40 mins. S1 * T1 = S2 * T2 => 48 * 50 = S2 * 40 => S2 = (48 * 50) / 40 = 60 km/h.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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A man covers a distance of 12 km in 2 hours by walking. How much distance will he cover in 5 hours if he maintains the same speed?
Correct Answer: Option B
Explanation:
Speed = 12 / 2 = 6 km/h. Distance in 5 hours = 6 * 5 = 30 km.
Speed = 12 / 2 = 6 km/h. Distance in 5 hours = 6 * 5 = 30 km.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A man walks from his residence to a focal point at 4 km/h and arrives 10 minutes late. If he increases his speed to 5 km/h, he arrives 2 minutes early. Find the distance.
Correct Answer: Option C
Explanation:
Time difference = 10 - (-2) = 12 minutes = 12/60 = 0.2 hours. Let distance be d. d / 4 - d / 5 = 0.2 => d / 20 = 0.2 => d = 4 km.
Time difference = 10 - (-2) = 12 minutes = 12/60 = 0.2 hours. Let distance be d. d / 4 - d / 5 = 0.2 => d / 20 = 0.2 => d = 4 km.
This question belongs to:
Maths
Time Speed and Distance
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