Sam wants to make concrete blocks that are 24 inches by 24 inches by 4 inches thick. How man blocks can he make from 1 cubic yard of concrete

Answer 1

assuming the concrete is in liquid form and poured into moulds

each block is 24x24x4 or 2304 cubic inches

number of cubic inches in one cubic yard
= 36x36x36 = 46656

number of blocks = 46656/2304 = 20.25

He can make 20 blocks, (not enough for 21)