Vishwanath
Wednesday, March 13, 2013
9.A man rows downstream 33 km and upstream 27 km taking 3 hrs each time. What is the velocity of the current?
[A] 3
[C] 1
[B] 5
[D] 1.5
Answer : [C]
Explanation :
|
|
| Rate downstream = |
| 33 |
|
| kmph = 11 kmph |
| | 3 |
|
| |
|
|
| Rate upstream = |
| 27 |
|
| kmph = 9 kmph |
| | 3 |
|
| |
|
|
| Velocity of current is | 1 |
| (11 - 9) kmph = 1 kmph |
|
| | 2 |
|
|
| |
|
|
Title : BOATS and STREAMS Q9
Description : 9.A man rows downstream 33 km and upstream 27 km taking 3 hrs each time. What is the velocity of the current? [A] 3 [C] 1 [B] 5 [D] 1.5 Answ...
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