The formula for the pancake problem is:

Number of pancakes = (number of pancakes x 2)/maximum number of pancakes to be cooked at a time

Note: When there is a remainder, the number of pancakes to be cooked is +1

Total time = number of times needed to be cooked x the time for each side to be cooked

Example:

A classroom has a cafeteria chef to cook one pancake for each of the 26 students in his class, 26 parents and 1 teacher. If a maximum of three pies can be cooked in the pan at a time, both sides of the pies are cooked, and the time taken to cook the pies on each side is 2 minutes each time, how many minutes at least does the cafeteria master have to cook the pies?

Analysis: In this question, the cafeteria master cooks one pancake for each of the 26 students in his class, 26 parents and 1 teacher. Then *** needs to cook 26+26+1=53 pancakes.

According to the pancake problem according to the formula, the number of pancakes = (number of pancakes x 2)/maximum number of pancakes to be cooked at a time = (53*2)/3=35......1, so it needs to be cooked 35+1=36 times. Each time you need to cook 2 minutes, *** need 2 x 36 = 72 minutes.

Similar questions:

The copy club needs to print 9 sheets of material, both sides, front and back. If a maximum of two sheets can be printed at a time, what is the minimum number of times they need to be printed?

Analysis: This question is a variation of the pancake problem, printing materials and pancakes are essentially the same.

The number of pancakes = (number of pancakes × 2) / a maximum of how many pancakes = (9 * 2) / 2 = 9 times.