If a certain toy store's revenue in November was 3/5 of its revenue in December and its revenue in ...
If a certain toy store's revenue in November was 3/5 of its revenue in December and its revenue in January was 1/3 of its revenue in November, then the store's revenue in December was how many times the average (arithmetic mean) of its revenues in November and January?
Answer/Solution
5/2
Steps/Work
N = 3D/5
J = N/3 = D/5
The average of November and January is (N+J)/2 = 4D/5 / 2 = 2D/5
D is 5/2 times the average of November and January.
The answer is A.
J = N/3 = D/5
The average of November and January is (N+J)/2 = 4D/5 / 2 = 2D/5
D is 5/2 times the average of November and January.
The answer is A.