Question

If (k – 3), (2k + 1) and (4k + 3) are three consecutive terms of an A.P., find the value of k​

Answer 1

Explanation:

Since these terms are consecutive terms of an A.P., the middle term must be the average of the other two.

⇒(k−3)+(4k+3)=2(2k+1)

⇒5k=4k+2

⇒k=2

Thus, the required value of k is 2.

Answer 2

Answer:

terms are consecutive terms of an A.P., the middle term must be the average of the other two .

⇒(k−3)+(4k+3)=2(2k+1)

⇒5k=4k+2

⇒k=2

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