two math questions

rebeccalin10UID: 2116329

1.A measuring cup contains 1/5 of a cup of orange juice. It is then filled to the 1 cup mark with a mixture that contains eaqual amounts of orange,grapefruit, and pineapple juices. what fraction of the final mixture is orange juice?
7 s4 t) O1 H8 Q* l
2. When it is noon eastern standard time in the New York city(EST), it is 9:00 a.m. Pacific standard time(PST) in San francisco. A plane took off form NY at noon EST and arrived in San Francisco at 4:00 p.m.PST on the same day. If a second plane left San Francisco at noon PST and took exactly the same amount of time for the trip, what was the plane's arrival time EST in NY?

hyacinthUID: 2184492

又见同样的题目.= =#
第一题的答案这里有https://bbs.gter.net/viewthre ... &extra=page%3D3
% x4 G- D  x) {7 Z: N
第二题
飞机的飞行时间是7个小时,PST的时间比EST早3个小时(如果偶没把AM是上午,PM是下午搞错的话)
10:00P.M.