Quantitative Aptitude Ques 1688

Question: Directions: In each of these questions what will comes in place of question mark (?) in the following number series? [RBI (Assistant) 2015]

3.9, 5.1, 7.5, 11.1, ?, 21.9

Options:

A) 16.1

B) 15.4

C) 16.3

D) 15.9

E) 14.8

Show Answer

Answer:

Correct Answer: D

Solution:

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