Question

OMG this question is so weird but please take it seriously. Working together, Tom and Di ck can dig 3 holes in 6 hours. Knowing Tom digs twice as fast as Di ck, how many hours would it take Tom, working alone, to dig 12 holes?

Answer 1

Tom can dig 12 holes in 36 hours.

Explanation:

Tom and Di ck dig 3 holes in 6 hours.

Tom works twice as fast as Di ck, so it is as if Tom is the same as 2 people at Di cks's speed and Di ck is as if it is 1 person at Di ck's speed. This means it is as if there are 3 people working at Di ck's speed.

Di ck working alone can dig 1 hole is 6 hours.

Tom can dig 2 holes in 6 hours.

Tom can dig 12 holes in 36 hours.