Three brothers enter a shop, each needing a pair of of shoes re-soled and a key cut. there are two assistants in the shop, both of whom work at the same speed. it takes 15 minutes to re-sole a pair of shoes and five minutes to cut a key. How quickly can they finish?
Answers
Answered by
0
Answer:
15+5=20
20×3
=60
therefore ans is 60min
Similar questions