Question

Please help!! I need an answer and explain, please and thanks!

Answer 1

Van is travelling

`64(7)/(8)\text{ miles per hour}`

That is,

`68(7)/(8)=(551)/(8)`

The aeroplane is

`5(6)/(7)=(41)/(7)`

times faster than van.

Therefore, aeroplane is travelling,

`(551)/(8)*(41)/(7)=(22591)/(56)`

That is aeroplane is travelling

`403(23)/(56)\text{ miles per hour}`