CAT  >  Boats and Streams - Examples (with Solutions), Logical Reasoning

# Boats and Streams - Examples (with Solutions), Logical Reasoning Notes | Study Quantitative Aptitude (Quant) - CAT

## Document Description: Boats and Streams - Examples (with Solutions), Logical Reasoning for CAT 2022 is part of 1.12 Boat &amp; Stream for Quantitative Aptitude (Quant) preparation. The notes and questions for Boats and Streams - Examples (with Solutions), Logical Reasoning have been prepared according to the CAT exam syllabus. Information about Boats and Streams - Examples (with Solutions), Logical Reasoning covers topics like and Boats and Streams - Examples (with Solutions), Logical Reasoning Example, for CAT 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Boats and Streams - Examples (with Solutions), Logical Reasoning.

Introduction of Boats and Streams - Examples (with Solutions), Logical Reasoning in English is available as part of our Quantitative Aptitude (Quant) for CAT & Boats and Streams - Examples (with Solutions), Logical Reasoning in Hindi for Quantitative Aptitude (Quant) course. Download more important topics related with 1.12 Boat &amp; Stream , notes, lectures and mock test series for CAT Exam by signing up for free. CAT: Boats and Streams - Examples (with Solutions), Logical Reasoning Notes | Study Quantitative Aptitude (Quant) - CAT
 1 Crore+ students have signed up on EduRev. Have you?

1. 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:

A. 8.5 km/hr

B. 10 km/hr.

C. 12.5 km/hr

D. 9 km/hr

Answer: Option B

Explanation:

Man's speed with the current = 15 km/hr
=> speed of the man + speed of the current = 15 km/hr

speed of the current is 2.5 km/hr
Hence, speed of the man = 15 - 2.5 = 12.5 km/hr

man's speed against the current = speed of the man - speed of the current
= 12.5 - 2.5 = 10 km/hr

2. 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:

A. 10

B. 6

C. 5

D. 4

Answer: Option C

Explanation:

Speed of the motor boat =15 km/hr
Let speed of the stream =v

Speed downstream =(15+v) km/hr
Speed upstream =(15−v) km/hr

3. 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:

A. 12 km/hr

B. 11 km/hr

C. 10 km/hr

D. 8 km/hr

Answer: Option B

Explanation:

Let speed of the boat in still water = a and speed of the stream = b

Then
a + b = 14
a - b = 8

Adding these two equations, we get 2a = 22
=> a = 11

ie, speed of boat in still water = 11 km/hr

4. 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:

A. 1 km/hr.

B. 2 km/hr.

C. 1.5 km/hr.

D. 2.5 km/hr.

Answer: Option A

Explanation:

Assume that he moves 4 km downstream in x hours

Given that he can row 4 km with the stream in the same time as 3 km against the stream

i.e., speed upstream =3/4 of speed downstream

=> speed upstream = 3x km/hr

He rows to a place 48 km distant and comes back in 14 hours

Now we can use the below formula to find the rate of the stream

Hence, rate of the stream = 1/2(8−6) = 1km/hr

5. A boatman goes 2 km against the current of the stream in 2 hour and goes 1 km along the current in 20 minutes. How long will it take to go 5 km in stationary water?

A. 2 hr 30 min

B. 2 hr

C. 4 hr

D. 1 hr 15 min

Answer: Option A

Explanation:

= 2 hour 30 minutes

The document Boats and Streams - Examples (with Solutions), Logical Reasoning Notes | Study Quantitative Aptitude (Quant) - CAT is a part of the CAT Course Quantitative Aptitude (Quant).
All you need of CAT at this link: CAT

## Quantitative Aptitude (Quant)

162 videos|152 docs|131 tests
 Use Code STAYHOME200 and get INR 200 additional OFF

## Quantitative Aptitude (Quant)

162 videos|152 docs|131 tests

### How to Prepare for CAT

Read our guide to prepare for CAT which is created by Toppers & the best Teachers

### Download free EduRev App

Track your progress, build streaks, highlight & save important lessons and more!

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

;