Last year department store x had sales total for december that was 4 times the average of the mnthly sales totals for january through november. THE SALES TOTAL WAS WHAT FRACTION OF THE SALES TOTAL FOR THE YEAR?
qa is 4/15. I got 4/11
this is how: picking number avg sales for monthly (jan -nov) 10 and consequently total sales for december = 40. total sales for jan -nov = 10 x 11= 110
total sales for december = 40
vuala! 4/11 I dont see how the solution is right!
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rey.fernandez
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The question asks for the fraction of December sales to total sales for the year.
I like your method... so January through November accounts for 110 and December accounts for 40, for a total of 150 for the year.
December sales to total annual sales is 40 to 150 or 4/15.
The key here is to make sure the denominator is the total annual sales, not just the sales of January through November.
Rey
I like your method... so January through November accounts for 110 and December accounts for 40, for a total of 150 for the year.
December sales to total annual sales is 40 to 150 or 4/15.
The key here is to make sure the denominator is the total annual sales, not just the sales of January through November.
Rey
Rey Fernandez
Instructor
Manhattan GMAT
Instructor
Manhattan GMAT
