Middle Grades Mathematics 5–9
For Testing until 12/31/2023

Question 2 of 30

Printer icon Print | Print All Questions

Competency 1—Knowledge of problem-solving and reasoning skills

DIRECTIONS: Read the question and select the best response.

John knows that he can mow a rectangular lawn that measures 20 yards by 40 yards in 2 hours. He estimates that it should take him about 4 hours to mow a rectangular lawn that measures 40 yards by 80 yards. Is John's estimate reasonable?

Choose an answer

Yes, because doubling the size of the field will double the amount of mowing time.
No, because John will be able to mow a longer distance without changing direction, resulting in a shorter mowing time.
Yes, because when the perimeter of the field is doubled, the total distance that the mower will need to travel is doubled.
No, because doubling the dimensions of the field will increase the area of the field by 4, resulting in a mowing time of about 8 hours.

Enter to expand or collapse answer.Answer expanded: Correct Response: D.

Sections

Middle Grades Mathematics 5–9 For Testing until 12/31/2023

Question 2 of 30

Competency 1—Knowledge of problem-solving and reasoning skills

Middle Grades Mathematics 5–9
For Testing until 12/31/2023