Question

If 3 + k, 18 - k, 5k + 1 are in AP then find k​

Answer 1

Answer:

k = 4

Step-by-step explanation:

Given that:-

3 + k, 18 - k, 5k + 1 are in AP

In an AP,

2b = a+c

2(18 - k) = 3 + k + 5k + 1

36 - 2k = 6k + 4

8k = 32

k = 4

Answer 2

Answer:

456526+8256

4281-5666

565456+8952

=47456239