how many 1 inch brownies will fit into 9x12 pan if they are 2 inches apart?

Question

9x12= 108 inches squared

 

 

Answer 1

Put one brownie in a corner.

1 inch of the length is taken. 11 in remain.

The next brownies need 3 inches (1 for brownie and 2 for space)

Three more brownies (11 / 3 = 3 and some left over) fit along the length

 

1 inch of the width is taken. 8 in remain.

The next brownies need 3 inches (1 for brownie and 2 for space)

Two more brownies (8 / 3 = 2 and some left over.

 

So there are three rows of four brownies or 12 brownies fit in the pan.

 

Answer 2

I would just draw it out. you get 12