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Re: Jamal got three monthly electric bills over the course of th [#permalink]
msk0657 My issue with this is that we do not know the middle bill is the average of the sample.

For example: x = 1, z = 411.

Condition #2
x+z = 412.

Median = 206.

Condition #1
Then average = 206 + 44 = 250.

Solve for y (and total)
(x+y+z)/3 = 250
(y + 412)/3 = 250
y + 412 = 750
y = 338

x = 1
y = 338
z = 411
total = 750
and this satisfies all conditionals asked by the problem
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Re: Jamal got three monthly electric bills over the course of th [#permalink]
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