Question

Jenna walks 12 miles in 5 days. Alex walks 7 miles in 3 days. Who walks more miles per day? Explain.

A.
Alex walks more miles per day. In 15 days, she would walk 36 miles, while Jenna would walk 35 miles.

B.
Jenna and Alex walk the same number of miles per day. They would both walk 25 miles in 11 days.

C.
Jenna walks more miles per day. In 30 days, she would walk 74 miles, while Alex would walk 70 miles.

D.
Jenna walks more miles per day. In 15 days, she would walk 36 miles, while Alex would walk 35 miles.

Answer 1

D.

Jenna: 12/5 = 2.4 miles/day. Alex: 7/3 ≈ 2.333… miles/day. Jenna walks more.
Scaled to 15 days: Jenna = 2.4×15 = 36 miles, Alex = (7/3)×15 = 35 miles, so option D is correct.