SOLUTION: A trader's average sales over 5 months is #85000. What sales is required in the sixth month in other to increase this average by #3000

Algebra ->  Average -> SOLUTION: A trader's average sales over 5 months is #85000. What sales is required in the sixth month in other to increase this average by #3000       Log On


   

Question 1123860: A trader's average sales over 5 months is #85000. What sales is required in the sixth month in other to increase this average by #3000
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


(1) By logical reasoning....

His sales in the 6th month have to be $85000, plus an extra $3000 for each of the 6 months.

$85000 + 6($3000) = $85000+$18000 = $103000

Using algebra....

"5 months with an average of $85000, plus the next month with x, makes an average of $88000 ($85000+$3000) for 6 months":

5(85000)+x = 6(88000)
425000+x = 528000
x = 5528000-425000 = 103000