[計量] PP1-DS-001
1. 86-!-item-!-187;#058&000002
A garden store purchased a number of shovels and a number of rakes.
If the cost of each shovel was $14 and the cost of each rake was $9,
what was the total cost of the shovels and rakes purchased by the store?
(1) The ratio of the number of shovels to the number of rakes purchased
by the store was 2 to 3.
(2) The total number of shovels and rakes purchased by the store was 50.
答案是C
但我的思路是由b 可以推出14s +9r=50
則當s 等於1 => r=4 當然也只有這個解 除非答案可以有小數點
如此一來 B就可以解出 不是嗎?
OPEN TO DISCUSS!! TKS
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