Unit 1 · Patterns and Sequences
Balancing Challenge — Total Halving Time
Lesson 4 of 7
About this lesson
Each child balances for half as long as the one before. Write out all five times first, then add carefully — convert to seconds to avoid decimal traps.
Chapters
Question
Five children take it in turn to do a balancing challenge, with each child completing it once.
The first child balances for 12 minutes.
After that, each child balances for half as long as the previous child.
What is the total time the five children are balancing?
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