find the value of p if the arthematic mean of 10,12,17,13,p is p
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10+12+13+17+p/5=p
52+p/5=p
52+p=5p
5p-p=52
4p=52
p=52/4
p=13
52+p/5=p
52+p=5p
5p-p=52
4p=52
p=52/4
p=13
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