The sum of five consecutive even numbers is 400. What is the hall of the sum of the smallest number and the largest number of the set ‘?
Let the numbers be of form
2a-4, 2a-2, 2a, 2a+2, 2a+4
given, 10a=400
Thus 2a=80
So, 2a-4 +2a+4 $$\div$$ 2=80
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