Question

A motorboat goes downstream in a river and covers a distance of 64km in 2 hours, while coming back to the starting point, the boat takes
$2 \frac{2}{7}$
hours. The speed of the motorboat in still water and the speed of the stream respectively are :
A. 20km/h and 8km/h
B. 28km/h and 4km/h
C. 30km/h and 2km/h
D. 32km/h and 3km/h ​​

Answer 1

Answer:

motorboat goes downstream in a river and covers a distance of 64km in 2 hours, while coming back to the starting point, the boat takes

$2 \frac{2}{7}$

hours. The speed of the motorboat in still water and the speed of the stream respectively are :

A. 20km/h and 8km/h

B. 28km/h and 4km/h

1. C. 30km/h and 2km/

Answer 2

Step-by-step explanation:

A motorboat goes downstream in a river and covers a distance of 64km in 2 hours, while coming back to the starting point, the boat takes

$2 \frac{2}{7}$

hours. The speed of the motorboat in still water and the speed of the stream respectively are :

A. 20km/h and 8km/h