<p>CB blue book page 585 #15
how on earth do they get A...i mean your flying forward time...</p>
<p>"When it is noon EST in NYC, it is 9:00 AM PST in San Francisco. A plane took off from NYC at noon EST and arrived in SF at 4:00 PM PST on the same day. If a second plane left SF at noon PST and took exactly the same time to for the trip, what was the plane's arrival time in EST in NYC?"</p>
<p>In other words, there is a 3 hour time difference between NY and Frisco. It is 3 hours earlier in Frisco. The flight went from Noon EST to 4:00 PST which 4 + 3 hours (for the time difference) = 7 hours.</p>
<p>The other plane takes off at noon PST and takes 7 hours. So it arrives at NYC at 7:00 PST. But EST is 3 hours later than PST. So 7:00 PST = 10:00 PM EST, answer choice A.</p>
<p>it took me 20 minutes but i solved it (the same method as obsessedandre)</p>
<p>THANKS OBSESSED ANDRE... the error i made was that i was comparing it to what it would normally take in real...idiot..</p>
<p>i did it my style...
12PM EST = 9AM PST... PST IS THREE HOURS SLOWER</p>
<p>PLANE TOOK OFF AT 12PM EST AND ARRIVED 4PM PST
12PM EST = 9AM PST ; ARRIVES AT 4 WHICH MEANS 7 HOURS RIDE</p>
<p>SO PLANE ARRIVES AT 7PM EST ATSANFRANSISCO</p>
<p>SECOND PLANE LEAVES AT 12 PST, WHICH = 3 EST</p>
<p>3 EST + 7 = 10</p>