SOLUTION: Hi
It takes 6 minutes to cut a log 4m long into 4 equal parts. At the same rate how long does it take to cut a log 9m long into 12 equal pieces.
Thanks
3 cuts are needed to cut a log into 4 parts.
So, one cut requires 6/3 = 2 minutes.
Next, 11 cuts are needed to cut a log into 12 pieces.
At the same rate of 2 minutes per cut, the required time is 2*11 = 22 minutes. ANSWER
Solved.
Obviously, it is an entertainment problem, which you can consider as a joke Math problem, too.