Directions : In the following Five questions, select the missing number from the given responses.

 9    11   13
13   15   11
14   16   18
11   13    ?


A) 22

B) 14

C) 15

D) 21

Correct answer:
C) 15

Description for Correct answer:

Row I

\( \Large 9 \xrightarrow{+2}{} 11 \xrightarrow{+2}{} 13 \)

Row II

\( \Large 13 \xrightarrow{+2}{} 15 \xrightarrow{+2}{} 17 \)

Row III

\( \Large 10 \xrightarrow{+2}{} 12 \xrightarrow{+2}{} 14 \)

Row IV

\( \Large 14 \xrightarrow{+2}{} 16 \xrightarrow{+2}{} 18 \)

Row V

\( \Large 11 \xrightarrow{+2}{} 13 \xrightarrow{+2}{} 15 \)



Please provide the error details in above question