Q:Matt gets a $1,000 commission on a big sale. This commission alone raises his average commission by $150. If Matt's new average commission is $400, how many sales has Matt made? How to Solve this problem.

dhiren8182 wrote:Q:Matt gets a $1,000 commission on a big sale. This commission alone raises his average commission by $150. If Matt's new average commission is $400, how many sales has Matt made? How to Solve this problem. Solution: Let the initial number of sales be n and the total sales on these n commissions be $x. So, x/n = 400-150 = 250. Also (x+1000)/(n+1) = 400. Or x+1000 = 400n + 400 Or 250n + 1000 = 400n + 400 Or 600 = 150n Or n = 4. Or n+1 = 5 So, total number of sales = 5

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