6
QuizMultiple Choice

Word Problems — Quiz

Question 6 • Algebraic Reasoning

Renee can sew a 25-square-foot quilt in 16 hours. Genera can sew the same size quilt in 12 hours. How long would it take them to sew the quilt working together? Rate (Quilts per Hour) Time (Hours) Fraction Completed Renee 1 over 16 x Genera 1 over 12 x

Answer
A
6 and 6 sevenths hours
B
28 hours
C
6 hours
D
8 and 6 sevenths hours

Explanation

Renee’s rate is 1/16 of a quilt per hour, and Genera’s rate is 1/12 of a quilt per hour. Working together, their rate is 1/16 + 1/12 = 3/48 + 4/48 = 7/48 of a quilt per hour. The time to sew one quilt is 1 ÷ (7/48) = 48/7 = 6 6/7 hours, so the answer is “6 and 6 sevenths hours.”

AI-written and checked against the verified answer.

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