Working with means and totals

Authors: 

RL

Summary: 

If you get it this is easy...if you don't there's a problem! You need to know that the total of three numbers is three times the mean of the three numbers.

Level: 

Level 6

Subject: 

Maths

Video Embed Code: 

Year: 

2015

Paper: 

2

Question: 

11

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