181k views
1 vote
Bruce has a pet worm that fell into a well. The well was 37 feet deep. Each day, the worm climbs up 7 feet, but each night, it slides back down 2 feet. How many days will it take Bruce's worm to get to the top of the well?

User Coralvanda
by
8.0k points

2 Answers

4 votes

Answer:

4 days

Explanation:

User Alexey Ruzin
by
7.6k points
5 votes

Answer:

It will take the worm 7 days to get to the top of the well.

Explanation:

the well is 37 feet deep

the worm climbs up 7 feet, but loses 2 feet through the night

That means the worm only really climbs 5 feet a day.

So, if you subtract 5 from 37, 6 times, you'll get 7 feet left to go. And sense the worm climbs 7 feet a day, the last day the worm will climb his way to the top without slipping back down.

Hopefully this makes sense.

User Crubio
by
8.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.