113 118 ? 112 ? 116 ? 110 115

Correct Answer is : 111, 114, 117

SSC CHSL 20 Dec 2015 Shift 1 Paper

In the following 4 questions, select the missing number from the given responses.

Question : 28 of 200

Marks: +1, -0

Solution:

In each column, the number in the middle is the average of the other two numbers.
I :

{113+x}/2=112

⇒

113 + x = 224

⇒

x = 224 − 113 = 111

Similarly, other numbers are = 114, 117

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