Bunuel wrote:
Tough and Tricky questions: Word Problems.
A salesman's income consists of commission and base salary. His weekly income totals over the past 5 weeks have been $406, $413, $420, $436 and $395. What must his average (arithmetic mean) income over the next two weeks be to increase his average weekly income to $500 over the 7-week period?
A. $570
B. $586
C. $630
D. $686
E. $715
Kudos for a correct solution.
Or,\(406+413+420+436+395+(a+b) = 500*7\)
Or,\(2070 + (a+b) = 3500\)
Or,\( a +\)
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