GWD-22-31滔滔

cournot · 发表于 2006-7-10 03:14:00

Q31:A total of n trucks and cars are parked in a lot. If the number of cars is 1/4 the number of trucks, and 2/3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?

D.8*n/15

这个题看不懂什么意思？恳请解答

lovetiky · 发表于 2006-7-10 08:57:00

the number of trucks is 4n/5

the number of cars is n/5

pickups are 4n/5 * 2/3 = 8n/15

cournot · 发表于 2006-7-11 12:52:00

terrible，读题干有问题真麻烦

jingle0915 · 发表于 2010-7-30 17:22:02

thinkyou

GWD-22-31滔滔

GWD-22-31滔滔

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