If 18, a, b - 3 are in A.P. then a + b =
A. 19
B. 7
C. 11
D. 15
Answer: Option D
Solution (By Examveda Team)
18, a, b - 3 are in A.P.,then a - 18 = -3 - b
⇒ a + b = -3 + 18 = 15
This Question Belongs to Arithmetic Ability >> Progressions
then a - 18 = -3 - b
⇒ a + b = -3 + 18 = 15
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Comments (1)
Related Questions on Progressions
The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is
A. 600
B. 765
C. 640
D. 680
E. 690
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