Question

If the sum of three terms of an AP is 42, than middle term is​

Answer 1

Step-by-step explanation:

Let the numbers be,

a−d,a,a+d

Given,

a−d+a+a+d=42

3a=42

∴a=14

Hence the middle number.

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Answer 2

Answer:

The middle term = a + d = 14

Step-by-step explanation:

Let the three numbers in AP be a , a+d , a+2d

Therefore we have ,

a + a + d + a + 2d = 42

3a + 3d = 42

3 ( a + d ) = 42

a+d = 42 / 3

therefore a + d = 14

As the a + d is the middle term , so the required answer is 14.