In each of the following questions select the missing number from the given responses.
`{:(7,6,8),(5,4,9),(3,2,1),(83,56,?):}`

Options

A. 146
B. 128
C. 136
D. 148

Answer

A

Explanation

First Column
`(7)^(2)+(5)^(2)+(3)^(2)`
`=49+25+9=83`
Second Column
`(6)^(2)+(4)+(2)^(2)`
`=36+16+4=56`
Third Column
`(8)^(2)+(9)^(2)+(1)^(2)`
`=64+81+1=146`