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CUET Commerce Exam  >  CUET Commerce Tests  >  General Test Preparation for CUET  >  Test: Boats And Streams- 1 - CUET Commerce MCQ

Test: Boats And Streams- 1 - CUET Commerce MCQ


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10 Questions MCQ Test General Test Preparation for CUET - Test: Boats And Streams- 1

Test: Boats And Streams- 1 for CUET Commerce 2024 is part of General Test Preparation for CUET preparation. The Test: Boats And Streams- 1 questions and answers have been prepared according to the CUET Commerce exam syllabus.The Test: Boats And Streams- 1 MCQs are made for CUET Commerce 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Boats And Streams- 1 below.
Solutions of Test: Boats And Streams- 1 questions in English are available as part of our General Test Preparation for CUET for CUET Commerce & Test: Boats And Streams- 1 solutions in Hindi for General Test Preparation for CUET course. Download more important topics, notes, lectures and mock test series for CUET Commerce Exam by signing up for free. Attempt Test: Boats And Streams- 1 | 10 questions in 10 minutes | Mock test for CUET Commerce preparation | Free important questions MCQ to study General Test Preparation for CUET for CUET Commerce Exam | Download free PDF with solutions
Test: Boats And Streams- 1 - Question 1
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Q. A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

Detailed Solution for Test: Boats And Streams- 1 - Question 1

Man's rate in still water = (15 - 2.5) km/hr = 12.5 km/hr.

Man's rate against the current = (12.5 - 2.5) km/hr = 10 km/hr.

Test: Boats And Streams- 1 - Question 2
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A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:
 

Detailed Solution for Test: Boats And Streams- 1 - Question 2

Let the speed of the stream be x km/hr. Then,

Speed downstream = (15 + x) km/hr,

Speed upstream = (15 - x) km/hr.

⇒  9x2 = 225

⇒  x2 = 25

⇒  x = 5 km/hr.

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Test: Boats And Streams- 1 - Question 3
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In one hour, a boat goes 14 km/hr along the stream and 8 km/hr against the stream. The speed of the boat in still water (in km/hr) is:

Detailed Solution for Test: Boats And Streams- 1 - Question 3

Test: Boats And Streams- 1 - Question 4
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A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:
 
Detailed Solution for Test: Boats And Streams- 1 - Question 4

Suppose he move 4 km downstream in x hours. Then,

Speed downstream = 

 

Speed upstream = 

So, Speed downstream = 8 km/hr, Speed upstream = 6 km/hr.

Test: Boats And Streams- 1 - Question 5
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A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?
Detailed Solution for Test: Boats And Streams- 1 - Question 5

Rate downstream = 

Rate upstream = 2 km/hr.

Speed in still water = 

 Required time = 

Test: Boats And Streams- 1 - Question 6
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Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 kmph. A man rows to a place at a distance of 4864 km and comes back to the starting point. The total time taken by him is:
 
Detailed Solution for Test: Boats And Streams- 1 - Question 6

Speed downstream = (14 + 1.2)
= 15.2kmph
Speed upstream = (14-1.2)
= 12.8kmph
Total time taken = 4864/15.2 + 4864/12.8
= 320 + 380
= 700hrs

Test: Boats And Streams- 1 - Question 7
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The speed of a boat in still water in 22 km/hr and the rate of current is 4 km/hr. The distance travelled downstream in 24 minutes is:
 
Detailed Solution for Test: Boats And Streams- 1 - Question 7

Speed downstream = (22 + 4) kmph = 26 kmph.

Distance travelled = 26 x 24/60

Distance travelled = 10.4 km

 

 

Test: Boats And Streams- 1 - Question 8
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A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?
Detailed Solution for Test: Boats And Streams- 1 - Question 8

Let the man's rate upstream be x kmph and that downstream be y kmph.

Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.

Test: Boats And Streams- 1 - Question 9
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A boat can travel with a speed of 22 km/hr in still water. If the speed of the stream is 5 km/hr, find the time taken by the boat to go 54 km downstream.
Detailed Solution for Test: Boats And Streams- 1 - Question 9

Speed downstream = (22 + 5) km/hr = 27 km/hr.

Time taken to travel 54 km downstream = (54/27) hours

= 2 hours 

 

Test: Boats And Streams- 1 - Question 10
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In one hour, a boat goes 14 km/hr along the stream and 8 km/hr against the stream. The speed of the boat in still water (in km/hr) is:
Detailed Solution for Test: Boats And Streams- 1 - Question 10

Speed in still water = 1/2 (14 + 8) km/hr

= 11 km/hr

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