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REASONING
Insert the missing number :...

Insert the missing number :

A

a) 94

B

b) 86

C

c) 82

D

d) 78

Text Solution

Verified by Experts

The correct Answer is:
B
The sum of square of the out side numbers is equal to central number.
`(3)^(2)+(2)^(2)+(2)^(2)+(4)^(2)`
`=9+4+4+16=33`
`(3)^(2)+(2)^(2)+(5)^(2)+(4)^(2)`
`=9+4+25+16=54`
Similarly,
`(6)^(2)+(5)^(2)+(4)^(2)+(3)^(2)`
`=36+25+16+9=86`
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