Question (43/53)
A train travels at an average of 50 miles per hour for `2 1/2` hours and then travels at a speed of 70 miles per hour for `1 1/2` hours. How far did the train travel in the entire 4 hours of journey ?(A) 120 miles
(B) 150 miles
(C) 200 miles
(D) 230 miles
Question (44/53)
The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then what is speed of first train ?(A) 70.5 km/hr
(B) 78.5 km/hr
(C) 84.5 km/hr
(D) 87.5 km/hr