After school craft center has 15 boxes of 64 crayons each. in 12 boxes 28 of crayons have not been used. so how many crayons have been used altogether?

There are 1296 crayons have been used altogether.

Step-by-step explanation:

Since we have given that

Number of boxes = 15

Number of crayons in each box = 64

So, Number of crayons in 15 boxes would be

Number of boxes = 12

Number of crayons in each box = 28

So, Number of crayons in 12 boxes would be

So, total number of crayons altogether would be

Hence, there are 1296 crayons have been used altogether.

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