Question

ercise 8.2
3. A person is walking, parallel to a railway line,
at a speed of 6 km/h. A train, travelling in
the opposite direction at 48 km/h, passes him
in 16 seconds. Find the length of the train.
4. The speed of a boat in still water is 8.5 km/h
and the speed of the stream is 2 km/h. Find :
(i) the time taken by the boat to go 63 km
downstream.
(ii) the time taken by the boat to go 26 km
upstream.
5. The speed of a boat in still water is 8 km/h
hind plz give answer of 3rd and 4th question and plz solve step by step on notebook ​

Answer 1

Answer:

The speed of a boat in still water is 8.5 km/h

and the speed of the stream is 2 km/h. Find :

(i) the time taken by the boat to go 63 km

downstream.

(ii) the time taken by the boat to go 26 km

upstream.

5. The speed of a boat in still water is 8 km/h

hind plz give answer of 3rd and 4th question and plz solve step by step on notebook