If four carpenters can build 4 houses in 2 days, how long will it take for 16 carpenters to build 24 houses?

Question

If four carpenters can build 4 houses in 2 days, how long will it take for 16 carpenters to build 24 houses?

Answer 1

1 carpenter builds 1 house in 2 days

16 carpenters build 16 houses in 2 days

16 carpenters build 24 houses in 3 days   (24 = 1.5 * 16, so number of days is 1.5 * 2)