英语翻译1.A man is 48 years old.He asks the other man how old he is.The other man answers:"I am twice as old as you were when i was as old as you are today." How old is the other man?CA.32 B.48 C.64 D.802.A rancher is building an open-ended(strai
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英语翻译
1.A man is 48 years old.He asks the other man how old he is.The other man answers:"I am twice as old as you were when i was as old as you are today." How old is the other man?C
A.32 B.48 C.64 D.80
2.A rancher is building an open-ended(straight)fence by string wire between posts 25m apart.If the fence is 100m long,how many posts should the rancher use?D
A.2 B.3 C.4 D.5
post是柱子的意思~
=== 第一题 我解释不清楚 给你google了下
Let x = my age,
y = your age
The age difference always remains constant therefore I will always be x-y years older than you.
When I was your age,i.e my age was "y" years,your age will be y - (x-y) = 2y-x years.
But at that time i was twice as old as you.i.e,y = 2*(2y - x)
=> y = 4y - 2x
=> 3y = 2x
Or my age = 1.5 * your age.
post在这里做名词,表示柱子、桩、杆等
e.g: The notice was nailed to a post.
布告钉在一根柱子上。
1.一个48岁的男人问另一个人你多大,这个人回答:“当我像你现在一样大时,我比你大一倍(指我48时你24)”。 问另一个人多大?
2.一个农场工人正在修建一个篱笆,使用25米长的线。如果篱笆场100米,要使用多少根线?
1.我现在的年龄是当我和你现在的年龄一样时你的年龄的二倍,即当我48岁时你的年龄的二倍就是我现在的年龄,设所求的年龄为(48+n).则48+n=2(48-n).n=16,所以是64岁。2电线杆,两杆距离25米,那5条就有4个间距25*4.