Question
The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 129. Find the average of the remaining two numbers?
The correct answer is
185
The sum of the first three numbers = (2 × 78) + 129 = 156 + 129 = 285.
The sum of the remaining two numbers = 655 - 285 = 370.
The average of the remaining two numbers = 370 ÷ 2 = 185.
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