If 18, a, b – 3 are in A.P. then a + b =
A. 19 B. 7 C. 11 D. 15 Answer: Option DShow Answer
Solution(By Apex Team)
18, a, b – 3 are in A.P.,
Then,
a – 18 = -3 – b
⇒ a + b
= -3 + 18 = 15
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