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SSC CGL Exam  >  SSC CGL Tests  >  Quantitative Aptitude for SSC CGL  >  MCQ: Boats and Streams - 1 - SSC CGL MCQ

MCQ: Boats and Streams - 1 - SSC CGL MCQ


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15 Questions MCQ Test Quantitative Aptitude for SSC CGL - MCQ: Boats and Streams - 1

MCQ: Boats and Streams - 1 for SSC CGL 2024 is part of Quantitative Aptitude for SSC CGL preparation. The MCQ: Boats and Streams - 1 questions and answers have been prepared according to the SSC CGL exam syllabus.The MCQ: Boats and Streams - 1 MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for MCQ: Boats and Streams - 1 below.
Solutions of MCQ: Boats and Streams - 1 questions in English are available as part of our Quantitative Aptitude for SSC CGL for SSC CGL & MCQ: Boats and Streams - 1 solutions in Hindi for Quantitative Aptitude for SSC CGL course. Download more important topics, notes, lectures and mock test series for SSC CGL Exam by signing up for free. Attempt MCQ: Boats and Streams - 1 | 15 questions in 15 minutes | Mock test for SSC CGL preparation | Free important questions MCQ to study Quantitative Aptitude for SSC CGL for SSC CGL Exam | Download free PDF with solutions
MCQ: Boats and Streams - 1 - Question 1
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If the downstream speed of a boat is 15 km/hr and the speed of the stream is 2 km/hr, what is the speed of the boat in still water?

Detailed Solution for MCQ: Boats and Streams - 1 - Question 1

Speed of the boat in still water = 15 – 2 = 13 km/hr
Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 2
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If the ratio of the upstream speed to the downstream speed of a boat is 1 : 2, what is the ratio of the speed of stream to the speed of the boat in still water?

Detailed Solution for MCQ: Boats and Streams - 1 - Question 2


Hence, Option B is correct

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MCQ: Boats and Streams - 1 - Question 3
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If 60% of the downstream speed of a boat is the same as the upstream speed of the boat. The speed of stream is what percentage of the speed of the boat in still water?

Detailed Solution for MCQ: Boats and Streams - 1 - Question 3

60% of downstream speed = Upstream speed
Downstream speed : Upstream speed = 100 : 60 = 5 : 3
Stream speed : Speed of the boat in still water 

Hence, Option B is correct.

MCQ: Boats and Streams - 1 - Question 4
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If the speed of a stream is 3 km/hr and the speed of a boat in still water is 14 km/hr, what is the upstream speed of the boat?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 4

Upstream speed of the boat = 14 – 3 = 11 km/hr
Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 5
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The time taken by a boat while covering a certain distance upstream is thrice the time taken by it while covering the same distance in still water. If the upstream speed is 6 km/hr, what is the downstream speed?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 5

Time → In still water : US = 1 : 3
Speed → In still water : US = 3 : 1
Speed → US : DS = 1 : (3 + 3 – 1) = 1 : 5

Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 6
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If the upstream speed of a boat is 12 km/hr and the speed of the stream is 12 km/hr, what is the downstream speed of the boat?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 6

Downstream speed of the boat = 12 + 12 × 2 = 36 km/hr
Hence, Option C is correct.

MCQ: Boats and Streams - 1 - Question 7
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If the speed of a boat in still water is 12 km/hr and the speed of the stream is 3 km/hr, in how many hours can it cover 75 km downstream?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 7

Downstream speed = 12 + 3 = 15 km/hr

Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 8
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A boat goes 90 km downstream in 3 hours and 120 km upstream in 6 hours. In how many hours can it go 180 km downstream and come back to the starting point?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 8


Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 9
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A boat goes 2 km along the stream in 6 minutes and 20 km against the stream in 4 hours. What is the speed of the boat in still water?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 9


Speed of the boat in still water 

Hence, Option C is correct.

MCQ: Boats and Streams - 1 - Question 10
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A man goes 80 km downstream and returns to the starting point in a total of 6 hours. If the ratio of the upstream speed to the downstream speed is 1 : 5, what is the speed of the stream?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 10

Let the upstream speed = x km/hr
Downstream speed = 5x km/hr

96 = 6x
x = 16

Hence, Option C is correct.

MCQ: Boats and Streams - 1 - Question 11
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If the speed of a stream is 5 km/hr and the speed of a boat in still water is 15 km/hr, what is the downstream speed of the boat?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 11

Downstream speed of the boat = 15 + 5 = 20 km/hr
Hence, Option A is correct.

MCQ: Boats and Streams - 1 - Question 12
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If the speed of a boat in still water is 15 km/hr and the speed of the stream is 3 km/hr, how much downstream distance can it cover in 3 hours?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 12

Downstream speed = 15 + 3 = 18 km/hr
So the answer = 18 × 3 = 54 km
Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 13
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A boat travels 80 km downstream in 4 hours. If the speed of the stream is 5 km/hr, in how many hours can it travel 40 km upstream?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 13


Upstream speed = 20 – 5 × 2 = 10 km/hr

Hence, Option D is correct.

MCQ: Boats and Streams - 1 - Question 14
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The speed of a boat in still water is 15 km/hr. It covers 45 km upstream in 6 hours. What is the speed of the stream?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 14

Upstream speed of the boat 

Speed of the stream = 15 – 7.50 = 7.50 km/hr
Hence, Option A is correct.

MCQ: Boats and Streams - 1 - Question 15
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A man can row 40 km downstream and return in a total of 7 hours. If the ratio of the upstream speed to the downstream speed is 2 : 5, what is the downstream speed?
Detailed Solution for MCQ: Boats and Streams - 1 - Question 15

Let the upstream speed = 2x km/hr
Downstream speed = 5x km/hr

28 = 7x
x = 4
So the answer = 5 × 4 = 20 km/hr
Hence, Option A is correct.

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MCQ: Boats and Streams - 1

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