8 × 12 × 20 × 4⁄5 = 1536.
To get the number of heaped bushels of corn in the ear in a crib:
(1) Multiply the length of the crib in inches by the width in inches.
(2) Multiply the product obtained, by the height of the corn in the crib in inches.
(3) Divide the result by 2748.
Example: How much corn in the ear can I put into a crib 12 feet wide, 20 feet long, and 10 feet deep?
Solution: The number of cubic inches in the crib is 144 × 240 × 120, or 4,147,200.
Since 2748 cubic inches hold 1 bushel, 4,147,200 cubic inches hold as many bushels as 2748 is contained times in 4,147,200, or 1509+ bushels.
Work:
144 × 240 × 1202748 = 1509+.