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Answer the following

Q7. There is a matrix that follows a certain rule now, wise or column wise. Find the missing number.

7 | 9 | 11 |

81 | 169 | ? |

2 | 4 | 6 |

A. 212

B. 241

C. 144

D. 289

*Here we are able to see that,*

**81 = (7 + 2)**

Same way, 169 = (9 + 4)

So pattern :-

Every no in the middle row is the square of sum of its upper and lower number.

Therefore,

? = (11 + 6)

^{2}Same way, 169 = (9 + 4)

^{2}So pattern :-

Every no in the middle row is the square of sum of its upper and lower number.

Therefore,

? = (11 + 6)

^{2}= 17^{2}= 289*So, the answer is at D.*

hope this helps.

thumbs up plzz.

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