Question

If Judy completes a puzzle by herself, it takes her 3 hours. working with sal, it only takes them 2 hours.

Answer 1

Answer:

C.

Step-by-step explanation:

Answer 2

Answer:

C. $\frac{1}{3}$

Step-by-step explanation:

We have been given a table showing rates of time taken by Judy and Sam to complete a puzzle.

We can see from our given table that Sal's rate is r. We are told that Judy completes a puzzle by herself, it takes her 3 hours. working with Sal, it only takes them 2 hours.

Since Judy completes the puzzle in 3 hours, so part of puzzle completed by Judy in one hour would be $\frac{1}{3}$, therefore, correct choice is option C.