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CGPSC Prelims CSAT 2015 Solved Paper 2

Question : 8 of 100

Marks: +1, -0

Solution:

Concept:

In each opposite pair of sectors, the larger number equals twice the smaller number plus

3

Explanation:

Check the known opposite pairs:

4 \times 2 + 3 = 11

7 \times 2 + 3 = 17

9 \times 2 + 3 = 21

Apply the same rule to

6

and

\mathrm{X}

\mathrm{X} = 6 \times 2 + 3

\mathrm{X} = 12 + 3 = 15

Answer:

\mathrm{X} = 15

, so the correct option is C.

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