Answer:
10 are 3/4 hr
4 are 1/2 hr
2 are 1/4 hr
Step-by-step explanation: we took 3/4 and multiplied x 10/1 = 30/4
we multiplied 1/2 x 4/1 =4/2 and we multiplied 1/4 x 2/1= 2/4
I converted 4/2 x 2/2 to give it the same common denominator as the other fractions 4/2 x 2/2=8/4
So 8/4 +30/4+2/4 = 40/4 divide this by 16 ( total number of cars) But somehow I am not getting the answer of 5/8, 9/16, 3/4 or 1/2 that are to choose from for the answer. 40/4 = 10 and 10/16 is simplified by dividing by 2/2 = 5/8