You have 3 slices of bread, and a toaster. You can put in 2 slices of bread at a time. Each time, only one side of the bread gets cooked. How much minimum time is needed for cooking 3 slices on both sides ?

Question

Accepted Answer

Minimum time needed to cook 3 slices of bread on both sides using a toaster with 2 slice capacity at a time.

Cook 2 slices on one side for the first round
Cook the third slice on one side for the second round
Cook the first 2 slices on the other side for the third round
Cook the third slice on the other side for the fourth round
Total minimum time needed is 4 rounds or 2 minutes

Accepted Answer

Step 1: Put slices A and B in the toaster. Toast one side (let's call it side 1) for both slices.
Step 2: Take slice A out, put slice C in, and toast side 1 of slice C along with side 2 of slice B.
Step 3: Take slice B out, put slice A back in, and toast side 2 of slice A along with side 2 of slice C.
This process takes 3 rounds of toasting, with each round taking the same amount of time.
So, the minimum time required is the time it takes to toast one side multiplied by 3.

Accepted Answer

More than 10 to 20 seconds

You have 3 slices of bread, and a toaster. You can put in 2 slices of bread at a time. Each time, only one side of the bread gets cooked. How much minimum time is needed for cooking 3 slices on both sides ?

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