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28 Jan 2026, 22:00
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
53% (02:19) correct
47%
(01:39)
wrong
based on 98
sessions
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Not Attempted Yet
The average selling price per sofa-set for a showroom in 2016 was $40 more than that in 2015. What was the revenue for the showroom, from the sale of sofa-sets, in 2015?
(1) The showroom sold 20% more number of sofa-sets in 2015 than in 2016.
(2) The revenue of the showroom, from the sale of sofa-sets, was $30,000 more in 2015 than in 2016.
(1) The showroom sold 20% more number of sofa-sets in 2015 than in 2016.
(2) The revenue of the showroom, from the sale of sofa-sets, was $30,000 more in 2015 than in 2016.
28 Jan 2026, 23:04
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ExpertsGlobal5
Let the average price in 2015 be $x => Average price in 2016 is $(x+40)
1: If the number of units in 2015 be n, the number in 2016 will be 1.2n - clearly insufficient to determine either the number of items or the average price - hence insufficient to determine revenue
2: If the revenue in 2015 be $r, in 2016 it will be $(r+30000) - clearly insufficient to determine either the number of items or the average price - hence insufficient to determine revenue
1 & 2: Combining the values of 2015 and 2016:
Revenue in 2015 = (x)(n) = r
Revenue in 2016 = (x+40)(1.2n) = r+30000
Clearly, these two equations cannot be solved for three variables - Insufficient
Answer E
Note: Had the main stem said: "average selling price per sofa-set for a showroom in 2016 was 40% more than that in 2015, i.e. a percent relation had been provided, the answer could have been determined.
01 Feb 2026, 09:45
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ExpertsGlobal5
Explanation Video:
