A small company with three bricklayers is hired to build a barbecue. Each worker can lay a certain integer number of bricks per minute. The company could assign any combination of 1, 2 or all 3 workers to the job, and each combination would complete the barbecue in a different integer number of minutes.

What is the minimum number of bricks in the barbecue?

(In reply to answer - spoiler by Ady TZIDON)

I'm not sure this is the best but
1,3,5 forms the teamings 1,3,4,5,6,8,9 which has a better LCM = 360

Posted by Jer on 2013-06-21 12:38:50