You are given two hourglasses. One measures 4 minutes and the other 7 minutes. Can you measure exactly 9 minutes?
Yes
No
Answers
Answered by
0
Answer:
I will try to give you anser
Answered by
0
Answer:
When the 4-min timer is empty, flip it over (the 7-min timer has 3 minutes left in the top). When the 7-min timer is empty, flip it over (there is now 1 minute left in the top of the 4-min timer).
Similar questions