Mental Floss 144

The answer to last week’s challenge is, Q: A snail crawls slowly up a garden wall 48cm high. If it crawls up 8cm a day and slips back 3cm each night, how long will it take to reach the top?

A: 9 days. If it travels 8cm up and 3cm back during a 24hr period, then it is progressing at a rate of 5cm per day. After 8 days it will be 40cm up the wall, so only on the 9th day will it reach the top.

This week’s challenge is …

Q: How many mistakes are there in the following sentence? “This sentance containes two misstakes”.

The answer along with a new challenge, next week.

Have a great weekend.

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