A boat covers a certain distance downstream in 1 hour, while it comes back in 1&

Question

A boat covers a certain distance downstream in 1 hour, while it comes back in 1 \(\frac{1}{2}\) hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

Options:

A . 12 kmph

B . 13 kmph

C . 14 kmph

D . 15 kmph

Answer: Option D

Let the speed of the boat in still water be x kmph. Then,

Speed downstream = (x + 3) kmph,

Speed upstream = (x - 3) kmph.

So, (x + 3) x 1 = (x - 3) x \(\frac{3}{2}
\)

2x + 6 = 3x - 9

x = 15 kmph.

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. 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?

Question 2. A man can row three-quarters of a kilometre against the stream in 11 \(\frac{1}{4}\) minutes and down the stream in....speed (in km/hr) of the man in still water is:

Question 3. Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance....the starting point. The total time taken by him is:

Question 4. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ....of the boat (in still water) and the stream is:

Question 5. 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....km against the stream. The rate of the stream is:

Question 6. 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....man in still water and the speed of stream respectively?

Question 7. 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 ....time taken to row a distance of 60 km downstream?

Question 8. a boat takes 9 hours to travel a distance upstream and takes 3 hours to travel the same distance downstream. if the sp....4 km/hr, what is the velocity of the stream ?

Question 9. a man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. th....of the boat (in still water) and the stream is

Question 10. a man can row 5 km/h in still water. if the speed of the current is 1 km/h, it takes 3h more in upstream than in the d....in the downstream for the same distance. the distance is:

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0

Submit Solution

More Questions on This Topic :

Latest Videos

Latest Test Papers