At 7c (.07) per pound, 518 pounds cost $36.26; at 3⁄8c, $1.941⁄4. For 3⁄8 of 518, multiply by 3, and divide product by 8.
Find cost of a lot of hogs, weighing 8740 pounds, at $4.35 per hundredweight.
| 87.40 | |
| 4.35 | |
| 380.1900 | |
The price being $4.35 per 100 pounds and as in 8740 pounds there are 87.40 hundredweight, four decimal places are pointed off. Ans. $380.19.
Find the cost of 2864 feet of lumber, at $171⁄4 per 1000 feet.
Price being dollars per 1000, point off three places. (2.864 × 171⁄4 = 49.404.) Ans. $49.40.
To find the value of articles sold by the ton (2000 pounds).
Rule.—Multiply the weight by the price and take half of the product.
Find the cost of 2680 pounds of hay, at $111⁄2 per ton.