Question

Find ‘k’ if k+9, 2k-1, 2k+7 are the consecutive terms in A.P.?

Answer 1

Answer:

2k-1-k-9= 2k+7-2k+1

k-10= 8

k= 10+8

k = 18

Answer 2

Step-by-step explanation:

the given three terms of the A.P. are consecutive terms. Therefore: Second term – first term = Third term – Second term. Therefore, for k=18, the given three consecutive numbers are in arithmetic progression.

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