Will mark also 99 if a train is scheduled to go 87 and 1 half miles in 2 and 1 half hours, what average speed must it travel? answer options with 5 options a. 37 and 1 fourth miles per hour b. 43 and 3 fourths miles per hour c. 35 miles per hour d. 25 miles per hour e. 2.5 miles per hour