Algebra Puzzle – Challenge 52

Challenge:

If 5 workers can build 2 houses in 24 days, then how many days would it take 24 workers to build 10 houses?

A- 10

B- 22

C- 24

D- 25

E- 60

The Absolute Best Book to Challenge Your Smart Student!

If 5 workers can build 2 houses in 24 days, they can make 1 house in 12 days. Therefore, each worker can make one house in 60 days. (5 × 12 = 60)
One worker can make 10 houses in 600 days. Therefore, 24 workers can make 10 houses in 25 days. (600 ÷ 24 = 25)

The Absolute Best Books to Ace Algebra