Q13
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 of 105 km and comes back to the starting point. The total time taken by him is:
A.
16 hours
B.
18 hours
C.
20 hours
D.
24 hours
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Speed upstream = 7.5 kmphSpeed downstream = 10.5 kmph
∴ Total time taken
= hours
= 24 hours