Question

One plane can travel 30 miles per hour faster than another. one of them goes 540 miles in the same time it takes the other to go 495 miles. what are their speeds?

Answer 1

p1=30mi/h+p2 or y=30+x

540+495=1035 miles in total

speed= distance/time

x+y=1035
y=30+x

x+(30+x)=1035

2x=1035-30

2x=1005
x= 502.5 mile per hour speed of plane 2
y= 30+502.5=532.5 speed of plane 1