It takes at least 3 minutes to fry 3 cakes.

It takes 2 minutes to fry a cake, so it takes 1 minute to fry one side. ?

Number these three cakes as a, b and c.

At first, put two cakes, A and B,

After 2 minutes, flip B, take out A and put C..

After 2 minutes, take out B, put the reverse of A, flip C, and shoot for another 2 minutes.

So it takes at least 1+ 1+ 1=3 (minutes) to fry three cakes?

So it takes at least 3 minutes to fry 3 cakes. ?

Extended data:

This kind of problem belongs to pancake problem in mathematics, and the formula of pancake problem is:

Total time = number of cakes × 2÷ quantity per pot × time for baking each surface.

When the time is not an integer, approximate it with the method of entering one.

For example, when the number of cakes is 4, each pot is 3, and each side is baked for 2 minutes, according to the formula, 4×2÷3×2≈6 points.

When only two cakes are baked in a pot: total time = time to bake one side × number of cakes.