# Algebra Puzzle – Challenge 32

This is a great mathematics challenge for those who love critical thinking problems. Let's challenge your brain!

## Challenge:

If 8 workers can build a house in 20 days, how many workers are needed to build the house in 4 days?

A- 12

B- 26

C- 32

D- 40

E- 44

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Keep in mind that the number of workers and the number of days are inversely proportional. It means that with more workers, it takes less time to build a house.
First, find the constant. W (number of workers) × D (days) = 8 × 20 = 160
Then, W × 4 (days) = 160 → W = 40
40 workers are needed to build the house in 4 days!

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