Question

on a trip of 200 miles,a man travels at the rate of 40 miles per hour for the first 100 miles .for the rest of the trip,he travels at the rate of 55 miles per hour.what is did average speed,in miles per hour,for the total trip?
A:400/9 B:200/9 C:90 D:50
anyone solved it?

Answer 1

the correct ans is none of the given options

hope it goes well