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Sunday, October 09, 2005 

Problem of the Week #3: The Snail Problem

Snappy the snail is climbing a slippery 30-inch wall. Each minute he climbs up 5 inches and then slips back 4 inches. How long does it take Snappy to climb the wall?

Basically you can figure each min the snail goes up 1 inch. So you can figure he gets to 25 in in 25 min. Then you run into a problem. He goes up 5 inches more and reaches 30 in.But he slips back down and is now at 26 in. So he has to climb up one more time and passes the 30 in mark. So my answer is 26 min.

I came out the the answer 25 min. Basically every minute hes going up 1 inch, so by the time he gets to 25 he will be at the top of the wall, because he climbed up 5 more inches, but didnt slip because he was already at the top of the wall.

It takes him 26 minutes. He didn't slip the last time.

I got 26 min becouse basicly he goes up 1 inches a minute so at 24 minutes he's 24 inches up then to 29 then back down to 25 then on the 26th minute it hits the 30 mark,the top of the wall.

I go tthe answer 26 minutes because he climbs one inch a minute,so at 26 minutes he has climbed 26 inches, so the next time when he climbs up 5 inches he will be at the top of the wall and will not slip back down anymore.

it took him 26 min because the last time he didnt slip.

it took him 26 min to get up the wall because when he gets to the top he won't slip back down.

he climbs a inch every minute, so it would take him 30 minutes to climb a 30in wall

Every minute he clmbs an inch when he reached the 25 inch mark he would climb another 5 inches in a minute and he would be at the 30 in mark so it would take him 26 min.

all I did was draw out the problem and I got the answer of 26 minutes.

i tried this and figured out 26 as my final answer. he will get to the top so therefor for the last one, you do not need to subtract 4 because he wont slip back down at the end.

Okay i got 26 minutes

going up an inch a minute it would take 30 minutes to get 30 inches and going 5 inches would take 30 minutes but it didnt slip the last time so you'd take away 4 minutes and you have your answer of 26

that last one was eddie feom 5th period

If the wall is 30 inch and he slides back 4 inch then sub 4 from 30 and it gives you 26.The snail was basically going an inch a min.

It would take him 30 minutes to climb the wall. Becuase if he goes up 5 and slips back 4 then he is moving up 1 inch every minute

It would take snappy 30 minutes to climb up the wall because if he moves 5 inches and goes back 4 inches every minute then he is only moving 1 inch a minute.

i came to the conclusion that the answer is 26 minutes. i did some calculating and the reasonable answer was 26. so if the wall was 30 inches and goes 5 then slips four then he will climb for 26 minutes to get to the top

I have to admit it, I fell for this one like many of you. It will take Snappy 26 minutes to climb the wall. Yes, he goes up 5 then slides back 4 each minute (so one inch per minute, but when he is at 25 inches (25 minutes), then next 5 inches he goes up but won't slide back down because he is at the top!

it will tak snappy 26 minutes to clime the wall because he climes a in. a minute for 25 min. then he reaches 30 in. the top of the wall so he dosen't slip

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