SOLUTION: If the average of 8,11,25 and p is 15, then 8+11+25+p=?. Is there any way of doing this type of problem without just guessing numbers and putting them in there?

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Question 362378: If the average of 8,11,25 and p is 15, then 8+11+25+p=?. Is there any way of doing this type of problem without just guessing numbers and putting them in there?
Found 3 solutions by mananth, Fombitz, tessmaths:
Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
8,11,25 and p is 15,
(p+44)/4 =15
p+44 =60


then 8+11+25+p=60
...
m.ananth@hotmail.ca

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The average is the sum of the elements divided by the number of elements.
%288%2B11%2B25%2Bp%29%2F4=15
.
.
8%2B11%2B25%2Bp=60
Now solve for p.

Answer by tessmaths(2) About Me  (Show Source):
You can put this solution on YOUR website!
If the average of 8,11,25 and p is 15, then 8+11+25+p=?. Is there any way of doing this type of problem without just guessing numbers and putting them in there?
(8 + 11+ 25 + p)/4 = 15 ( is the method of finding average)
Multiplying 4 on either side , we get
44 + p = 60
p = 16