Question

If speed of a boat in downstream is 7 km/hr and speed of same boat in upstream is 1 km/hr then speed of boat in still water is be

Answer 1

Answer:

4 km/hr

Step-by-step explanation:

Let speed of boat in still water be B

Let speed of River be R

Speed of boat in downstream be D, which is ( B+R) = 7km/hr

Speed of boat in upstream be U, which is (B-R) = 1 km/hr

Now for Speed of boat in Still water will be

= ( Speed of boat in downstream+ Speed of boat in upstream)/2

= ( 7+1)/2 = 4km/hr