7. Bart drove 140 miles in 2 hours..What was Bart's average speed in m

1.	7. Bart drove 140 miles in 2 hours..What was Bart's average speed in milesper hour?.A. 66'miles per hourB. 65 miles per hourC. 56 miles per hourD. 55 miles per hour.
Answer» Answer C. 56 miles per hour. C. 56 miles per hour. Distance covered by Bart in 2½ hours = 140 miles,distance covered by Bart in 1 hour = 140 * ( 2 / 5 ), = 56 miles per hour. distance=140milestime=5/2hrspeed=distance/time=140÷5/2=140×2/5=28×2=42miles/hr

7. Bart drove 140 miles in 2 hours..What was Bart's average speed in milesper hour?.A. 66'miles per hourB. 65 miles per hourC. 56 miles per hourD. 55 miles per hour.

Answer»

Answer C. 56 miles per hour.

C. 56 miles per hour.

Distance covered by Bart in 2½ hours = 140 miles,distance covered by Bart in 1 hour = 140 * ( 2 / 5 ), = 56 miles per hour.

distance=140milestime=5/2hrspeed=distance/time=140÷5/2=140×2/5=28×2=42miles/hr