# #24. Question of the Week

**John took 6 minutes to saw a plank of wood into 4 pieces. How long would he need to saw a plank of wood into 10 pieces?**

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How to solve interval problem sums involving number of cuts?

Interval concept is a commonly tested heuristic problem sums. It is first introduced at Primary 2. This week, we would like to share with you how to solve a **Primary 4** Interval Concept Math questions that involve number of "Cuts".

Solution:

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