Question

John likes to hike during the summer he can usually hike about 3 miles every hour but when it's really hot he swims in a mountain lakes for a half hour after every 4 miles how long does it take him to hike 9 miles

Answer 1

4 hours

Explanation:

John is hiking 9 miles. If it takes him an hour for every 3 miles, then you will do 9 ÷ 3.

9 ÷ 3 = 3

And it is stated that after every 4 miles, he takes a swim.

There will only be two swimming breaks since 4 can only go into 9 twice.

And two swim breaks will add up to an hour, adding an additional hour onto the 3 hours it takes for him to normally hike.

So, John hikes the 9 miles in 4 hours.

Answer 2

During the 9 mile hike he spends 2 periods of half hour swimming = 1 hour.
actual hiking time = 3*3 = 9 hours

So total time = 9+1 = 10 hours