Mathematics
Grade10
Easy

Question

If a , b , c are in Arithmetic Sequences then:

  1. 2a = b + c 
  2. 2c = a + b 
  3. 3b = 2a + 3c 
  4. 2b = a + c

Hint:

We will find the common diffrence in the given equation and evaluate using the equality.

The correct answer is: 2b = a + c


    STEP  BY STEP SOLUTION
    The given AP is a, b , c
    Common differences are equal arithmetic sequence
    b - a = c - b
    2b = a + c

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