#### Problem Statement: ECE Board April 1998

The arithmetic mean of 80 numbers is 55. If two numbers namely 250 and 850 are removed, what is the arithmetic mean of the remaining numbers?

- A. 42.31
- B. 50
- C. 38.62
- D. 57.12

#### Problem Answer:

The arithmetic mean of the remaining numbers is equal to **42.31**.

Solution:

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