The average of five numbers is 20. When a sixth number is included,the average of the six numbers is 25. Find the value of the sixth number.

Is this question even possible?

If so, could anyone give me some pointers on how to attempt it?

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- Nov 30th 2009, 01:32 AMuser_5Worded algebra question
The average of five numbers is 20. When a sixth number is included,the average of the six numbers is 25. Find the value of the sixth number.

Is this question even possible?

If so, could anyone give me some pointers on how to attempt it? - Nov 30th 2009, 01:35 AMWilmer
HINT: (100 + n) / 6 = 25

- Nov 30th 2009, 01:41 AMuser_5
What does the 100 in your equation represent?

- Nov 30th 2009, 01:53 AMJameson