Find the missing term: 20, 20, 19, 16, 17, 13, 14, 11, ?, ?
A. 10, 10
B. 10, 11
C. 13, 14
D. 13, 16
Answer: Option A
Solution(By Examveda Team)
Let the missing terms of the series be x1 and x2.Thus, the sequence 20, 20, 19, 16, 17, 13, 14, 11. x1, x2 is a combination of two series:
I. 20, 19, 17, 14, x1 and
II. 20, 16, 13, 11, x2
The pattern in I is - 1, - 2, - 3,..............So, missing term, x1= 14 - 4 = 10
The pattern in II is - 4, - 3, - 2,.......... So,missing term, x2 = 11 - 1 = 10
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