[計量] OG的168與175題
題目是這樣的
168.An airline passenger is planning a trip that involves three connecting
flights that leaves from Airports A, B, and C,respectively. The first flight
leaves Airport A every hour, beginning at 8:00 a.m., and arrives at Airport
B 2 and 1/2 hours later. The second flight leaves Airport B every 20 minutes,
beginning at 8:00 a.m., and arrives at Airport C 1 and 1/6 hours later. The
third flight leaves Airport C every hour, beginning at 8:45 a.m. What is the
least total amount of time tha passenger must spend between flights if all
flights keep to theur schedules? Ans:1 hr 15 minutes
這題其實題目有點看不太懂..外加解答看的霧煞煞..
另一題175.
A square countertop has a square tile inlay in the center, leaving an untiles
strip of uniform width around the tile. If the ratio of the tiled area to the
untiled area is 25 to 39, which of the following could be the width, in inches
, of the strip?
Ans:1.3.4
這題也是題目看不太懂@@....麻煩大家了
謝謝:)
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