Question

22. If 3 + k , 18 – k , 5 + k are in A.P., then find k

Answer 1

Answer:

k=7

answer and explanation given in picture

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Answer 2

Answer:

3 + k , 18 – k , 5 + k......

are in A.P.

a=3+k,d=18-k-3+k=....

formula used is...

An=a+(n-1)d.....

....

and solve it

Step-by-step explanation:

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