Question

If 400 bricks measuring 81" by 31" are required to build a wall 42 ft. high, how long is the wall?

Answer 1

Area of one brick = 6.75x2.58=17.44
`ft^(2)`

Area of 400 bricks = 400x17.44=6975
`ft^(2)`

Total brick area divided by 42' height of wall = 6975÷42=166.07 ft

The correct answer is 166 ft

Hope this helps!!!

<3 -austint1414