Question

Every 1/2 hour Naomi stretches her neck;every 1/3 hour we stretches her legs and every 1/6 hour she stretches her arms. Which parts of her body will Naomi stretch when 2/3 of an hour has passed?

Answer 1

She will have stretched her neck 1 time, she will have stretched her legs 2 times, and she will have stretched her arms 4 times.

Explanation:

This is because 1/2 can only go into 2/3 once, 1/3 can go into 2/3 twice, and 1/6 can go into 2/3 four times.