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?

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)   (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)   (Show Source): You can put this solution on YOUR website!
The average is the sum of the elements divided by the number of elements.

.
.

Now solve for .
Answer by tessmaths(2)   (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
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