Question

Answer the question no 1?

Answer 1

a) log boat - 4km in 1 hour

time to cover 1km = 60min/4
= 15min
Therefore, to cover 22km = 22* 15
=330 min = 5 and a half hour.


b) long tail boat =12km in 1 hour
in 1/2 hour = 12/2 =6km

therefore in 4 + 1/2 hour = 4*12 + 6
=54km

The long tail boat covers 54km in 4hours 30min.

c) machine boat = 11km in 30 min

in 1km
= 30/11 = 2.727 min

therefore in 77km
= 77*2.727
=210 min
=210/60
=3.5 hour

Machine boat takes 3hour 30 min to cover 77km.

----_------_---------_------


hope it helps