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Abhishake

· started a discussion

· 1 Months ago

ANSWER SHOULD BE 7 KM/H. (Question: 101210.0 )

upstream=6 km in 2 hours
i.e 6/2= 3 km/h
Sc=4 given
sb=?
upstream=sb-sc
i.e 3=sb-4
=>sb=3+4=>7 km/h

Question:

A boat goes 6 km upstream and back again to the starting point in 2 hours. If the velocity of the stream is 4 km/hr, what is the speed of the boat in still water?

Options:
A) 6.5 km/hr 
B) 7.5 km/hr 
C) 8 km/hr
D) 8.5 km/hr
E) None of these
Solution:

Knowledge Expert

· commented

· 1 Months ago

Dear student,
Given answer is correct.
Keep learning,
Team TR

Rakesh

· commented

· 1 Months ago

8 is only correct

Tarun Kumar

· commented

· 1 Months ago

8 will be right answer
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