Question

These log boats do not go very far.
If the wind is helpful, they travel
about 4 km in one hour.
* How long will they take to go a
distance of 10 km?​

Answer 1

Answer:

Step-by-step explanation:

We can use unitary method

for example if you eat one apple in 1 minute it will take you how many minutes to eat two apples?

And is 2 i.e 2*1/1=2

Similarly for 4km it takes 1 hour

For 10 km it will take 10*1/4=2.5 hour

Answer 2

Answer:

2and half an hour

Step-by-step explanation:

Traveled 4km in hour= 1hr(60min)

traveled 10km in hour= x

1/4:x/10

x=1×10/4

x=2.5

in hours= 25/10×60=150min

150min= 2and 1/2 hrs