[問題PS Form19-2 sec05-Q4

[w1956115]

The rectangular bed of a truck is 6feet wide and 7feet lonf and has sides 1 1/2 feet hight. A type of gravel weighs about 95 pounds per cubic foot. If the truck bed were filled level to the top of its sides with this grvael, approximately how many tons would the gravel weigh?
(1 ton = 2000 pounds)

(a)1/2
(b)2/3
(c)3
(d)8
(e)36

答案是C....

[Ace]

The rectangular bed of a truck is 6feet wide and 7feet lonf and has sides 1 1/2 feet hight. A type of gravel weighs about 95 pounds per cubic foot. If the truck bed were filled level to the top of its sides with this grvael, approximately how many tons would the gravel weigh?
(1 ton = 2000 pounds)

(a)1/2
(b)2/3
(c)3
(d)8
(e)36

答案是C....

6*7*(3/2)/2000=2.9925

[w1956115]

那 95 pounds 呢?...
這題的意思是什麼阿...為什麼沒用到 95 pounds 這數字呢?

[Ace]

那 95 pounds 呢?...
這題的意思是什麼阿...為什麼沒用到 95 pounds 這數字呢?

抱歉之前算式 key錯
正確應該是6*7*(3/2)*95/2000=2.9925