Question

What is the arithmetic mean between 7 and 35?

Answer 1

SOLUTION

TO DETERMINE

The arithmetic mean between 7 and 35

EVALUATION

Let x be the arithmetic mean between 7 and 35

Then 7 , x , 35 are in Arithmetic Progression

So we have

x - 7 = 35 - x

⇒ x + x = 35 + 7

⇒ 2x = 42

⇒ x = 21

FINAL ANSWER

21 is the arithmetic mean between 7 and 35

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