1982 AHSME Problems/Problem 28

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Problem

A set of consecutive positive integers beginning with $1$ is written on a blackboard. One number is erased. The average (arithmetic mean) of the remaining numbers is $35\frac{7}{17}$. What number was erased?

$\textbf{(A)}\ 6\qquad  \textbf{(B)}\ 7 \qquad  \textbf{(C)}\ 8 \qquad  \textbf{(D)}\  9\qquad  \textbf{(E)}\ \text{cannot be determined}$

Solution

See Also

1982 AHSME (ProblemsAnswer KeyResources)
Preceded by
Problem 27
Followed by
Problem 29
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