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Jonny cut a plank of wood so that it is 50% shorter. It is now 42cm long. How long was the plank of wood before Jonny cut it?
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2 votes
Jonny cut a plank of wood so that it is 50% shorter.

It is now 42cm long.

How long was the plank of wood before Jonny cut it?

User Brub
by
4.1k points

1 Answer

7 votes


42 \: cm * 2 = 84 \: cm

The plank of wood was 84 cm bejore Jonny cut it.

//

Proof:


84 * 0.50 = 42 \: cm

User Syed
by
4.6k points
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