Ten Green Bottles

Problem | Teachers' Notes | Hint | Solution | Printable page |
Stage: 2 Challenge Level: Challenge Level:1

Why do this problem?

This problem is one which could be done quickly as an introduction when extending or revising work on time and clocks.

Key questions

When does the first bottle fall?

So when does the second bottle fall?

How many $5$ minutes are there between the first and tenth bottles falling?

Possible extension

Learners could find the equation for the $nth$ bottle falling.

Possible support

Suggest using a real or model clock and counting.

Published March 2003,April 2003.