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Select the number from among the given options thar can replace the question mark (?) in the following12, 10, 11.5, 10.5, 11, 11, 10.5, 11.5, 10, ?
Question

Select the number from among the given options thar can replace the question mark (?) in the following
12, 10, 11.5, 10.5, 11, 11, 10.5, 11.5, 10, ?

A.

8.5

B.

13

C.

11

D.

12

Correct option is D

Given: 12, 10, 11.5, 10.5, 11, 11, 10.5, 11.5, 10, ?
Logic: Series follows the alternate decrease by 0.5 and then increase by 0.5
Explanation:
Pattern 1:
12-0.5=11.5
11.5-0.5=11
11-0.5=10.5
10.5-0.5=10
Pattern 2:
10+0.5=10.5
10.5+0.5=11
11+0.5=11.5
11.5+0.5=12
So, ? is replaced by 12.
Thus, Option D is the correct answer.

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