The average of 5 consecutive numbers is 65.The average of their squares.
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let the five numbers be n, n+1, n+2, n+3 and n+4.
Then n+n+1+n+2+n+3+n+4 = 65.
So 5n+1+2+3+4 = 65.
So 5n+10 = 65.
So 5n = 65–10 = 55.
So n = 55/5 =11.
So the five numbers are:
11, 12, 13, 14 and 15.
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Answer:
let the five numbers be n.
=n+1, n+2, n+3 and n+4.
Then, n+n+1+n+2+n+3+n+4 = 65.
So ,5n+1+2+3+4 = 65.
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