Problem of the Week

May 1, 2022 | Folsom

 

 

 

 

 

 

Did you figure it out?

Answer:  40 seconds

Solution:  By the time the robot starts running, K9 has already gone 20 × 10 = 200 meters. So, we need to know when the distance the robot can run in x seconds is equal to 200 meters more than K9 can run in the same amount of time:

25x = 200 + 20x

5x = 200

x = 40 seconds.

 

 

 

 

 

 

 

Did you figure it out?

Answer:  5,400 cubic centimeters

Solution:  The volume of a box is its length multiplied by its width multiplied by its height. So, the volume of the tank is 10 × 20 × 30 = 6,000 cubic centimeters. Since the tank already has 600 cubic centimeters of punch in it, it can hold 6,000 – 600 = 5,400 cubic centimeters more.

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