Question 357722
plane A speed = x mph
plane B speed = x+60 mph
since they are travelling towards each other the effective speed will be 2x+60 mph
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distance apart 1220 miles
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time they cross = 2 hours
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time = distance / speed
1220/2x+60 =2
1220 =2*(2x+60)
1220=4x+120
1220-120=4x
1100=4x
x=1100/4
x=275 mph speed of plane A
Plane B speed = 275+60 = 335 mph