Question

A blacksmith has to put new shoes on a stable of 20 horses. Each shoe requires 3 nails. How can he/she calculate the number of nails that must be brought to the stable?
(Set up a conversion)

Answer 1

20 horses .. each horse have 4 legs hence 4 shoes
for every shoe we need 3 nails
so :
20 * 4 * 3

Answer 2

Thank you very much!