SOLUTION: Two planes start from Manila Airport and fly in opposite direction. The second plane starts 0.5 hours after the first plane, but its speed is 80 km/h. Find airspeed of each plane i

Question 861365: Two planes start from Manila Airport and fly in opposite direction. The second plane starts 0.5 hours after the first plane, but its speed is 80 km/h. Find airspeed of each plane if 2 hours after the first plane departs, the planes are 3200km apart.
Found 2 solutions by mananth, richwmiller:
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
80 km/h faster or slower
or 80 km
pl repost
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
80 kmph is very slow for a plane
3200=1.5*80+2r
3200=120+2r
3080-2r
1540=r
Are you sure it is 3200 and not 320
320=1.5*80+2r
200=2r
r=100

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