Time and Work - Comprehensive Mock Test 6

Question 51 Hard

A man can row at 5 km/hr in still water, if the river is running at 1 km/hr it takes him 75 minutes to row to a place and back. How far is the place?

A) 2.5km B) 3km C) 4 km D) 5 km

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Solution Breakdown:

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Question 52 Hard

he speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in?

A) 5hrs 50 min B) 6 hours C) 6 hours 50 min D) 12 hours 10 min

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Solution Breakdown:

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Question 53 Hard

The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is?

A) 5km/hr B) 8 km/hr C) 10 km/hr D) 15 km/hr

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Solution Breakdown:

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Question 54 Hard

A steamer goes downstream from one port to another in 4 hours, it covers the same distance upstream in 5 hours. If the speed of the stream is 2km/hr,the distance between the two parts is?

A) 50km B) 60km C) 70km D) 80 km

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Solution Breakdown:

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Question 55 Medium

A boat is rowed downstream at 15.5km/hr and upstream at 8.5 km/hr. The speed of the stream is?

A) 3.5km/hr B) 5.75km/hr C) 6.5km/hr D) 7km/hr

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Solution Breakdown:

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Question 56 Hard

A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?

A) 13, 3 B) 12, 6 C) 15, 3 D) 14, 4

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Solution Breakdown:

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Question 57 Hard

The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream?

A) 12 kmph B) 13 kmph C) 14 kmph D) 15 kmph

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Solution Breakdown:

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Question 58 Hard

. A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?

A) 20/6 hours B) 27/2 hours C) 30 hours D) 30/13 hours

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Solution Breakdown:

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Question 59 Hard

The speed of a boat in upstream is 60 kmph and the speed of the boat downstream is 80 kmph. Find the speed of the boat in still water and the speed of the stream?

A) 70, 10 kmph B) 35, 27 kmph C) 50, 60 kmph D) 45, 55 kmph

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Solution Breakdown:

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Question 60 Hard

The speed of a boat in still water is 60kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?

A) 35, 25 kmph B) 80, 40 kmph C) 40, 60 kmph D) 50, 55 kmph

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Solution Breakdown:

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