A boat travels up stream from B to A and downstream from A to B in 3 h. If the speed of the boat in still water is 9 km/h and the speed of the current is 3 km/h , the distance between A and B is: (A) 9 km (C) 11 km (B) 10 km (D) 12 km 2 |
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Answered by
1
Answer:
11 kmhwhshshshbsbdhdhdh
Answered by
0
Answer:
12 km
Step-by-step explanation:
Let the distance between A and B be x km.
Upstream speed =9−2=6 kmph
Downstream speed =9+3=12 kmph
x/6 + x/12
=3⇒ 2x+x/12
=3⇒3x=36⇒x=12 km.
VRthexpert:
did you got it
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