Walking at 6/7 of his normal pace, a man is 12 minutes late to his workplace. What is his normal time? MCQ with Answer and Explanation

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Walking at 6/7 of his normal pace, a man is 12 minutes late to his workplace. What is his normal time?

A. 90 minutes

B. 64 minutes

C. 72 minutes

D. 80 minutes

Answer: Option C

Solution (By JKSSB Mock Tests)

New speed = 6/7 of normal pace => New time = 7/6 of normal time. Difference = 1/6 of normal time = 12 minutes. Normal time = 12 * 6 = 72 minutes.

This question belongs to: Maths Time Speed and Distance

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Question #1

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A locomotive 180 meters long crosses a modern bridge in 30 seconds. If it takes 12 seconds to pass a single post light, find the length of the bridge.

A. 320 meters

B. 300 meters

C. 250 meters

D. 270 meters

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Correct Answer: Option D

Explanation:
Speed of train = 180 / 12 = 15 m/s. Total distance in 30 seconds = 15 * 30 = 450 meters. Length of bridge = 450 - 180 = 270 meters.

This question belongs to: Maths Time Speed and Distance

Question #2

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A cyclist handles 800 meters in exactly 2 minutes 40 seconds. Find his speed in km/h.

A. 16 km/h

B. 18 km/h

C. 20 km/h

D. 22 km/h

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Correct Answer: Option B

Explanation:
Time = 2 minutes 40 seconds = 160 seconds. Speed = 800 / 160 = 5 m/s. In km/h = 5 * (18/5) = 18 km/h.

This question belongs to: Maths Time Speed and Distance

Question #3

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A bus runs at 40 km/h for 2 hours and 50 km/h for the next 3 hours. Find the average speed of the bus for the total journey.

A. 46 km/h

B. 45 km/h

C. 48 km/h

D. 47 km/h

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Correct Answer: Option A

Explanation:
Distance 1 = 40 * 2 = 80 km. Distance 2 = 50 * 3 = 150 km. Total distance = 230 km. Total time = 2 + 3 = 5 hours. Average speed = 230 / 5 = 46 km/h.

This question belongs to: Maths Time Speed and Distance

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