Question

Working at a constant rate, Bob can produce x/3 widgets in 8 minutes. Working at a constant rate, Jack can produce 2x widgets in 40 minutes, where x>0. Which of the following is greater:

a. The number of minutes it will take Bob to produce 5x widgets.

b. The number of minutes it will take Jack to produce 6x widgets.

Answer 1

Can you say how many minutes Jack will take to produce x widgets?

Answer 2

8?

Answer 3

Time taken by Jack to produce 2x widgets = 40 minutes

Hence, time taken by Jack to produce x widgets = ?

Answer 4

?

Answer 5

they're equal?

Answer 6

2 minutes for both?

Answer 7

If you can make 20 objects in 40 minutes, how long will it take for you to make 1 object?

Answer 8

1/2

Answer 9

2 inutes

Answer 10

minutes

Answer 11

how did you calculate that?

Answer 12

20/40 = 2/4 = 1/2 = 1 object every 2 minutes

Answer 13

okay so if Jack makes 2x objects in 40 minutes, how long will it take for him to make 1 object?