One man travels 10 km upstream n 5 hrs another man travels downstream 10 km in 3 hrs. If the speed of the stream is 0.5 km/hr, what is the difference between the speeds of men?
A. 5/4
B. 7/3
C. 4/3
D. 2/3
Join The Discussion
Comments ( 1 )
Related User Ask Questions
Which of the following is not a primary function of a Bank?
A. Granting Loans
B. Collecting Cheques/Drafts customers
C. Facilitating import of goods
D. Issuing Bank Drafts
A. Regulatory jurisdictional fight between SEBI and IRDA
B. They don’t offer better tax benefits
C. They offer lesser returns compared to traditional insurance policies
D. All of the above
The Chameli Devi Jain Award is given for an outstanding woman ____?
A. Scientist
B. Reporter
C. Player
D. Teacher
Speed of the stream = 0.5 kmph.
Speed of the first man upstream = 10/5 = 2 kmph.
Speed of the second man downstream = 10/3 = 3.33 kmph.
So, actual speed of the first man = 2 + 0.5 = 2.5 kmph.
Actual speed of the second man = 3.33 - 0.5 = 2.83 kmph.
Difference in the speed in still water = 2.83 - 2.5 = 0.33 kmph.
And just difference in speed = 3.33 - 2.5 = 1.33 kmph.