Calculate value of `(X+Y+Z)/(10)`, here X is O-N-O bond angle in `NO_(3)^(-)` Y is O-N-O bond angle in `NO_(2)^(+)` and Z is F-Xe-F adjacent bond angle in `XeF_(4)`.

Answer

39

Explanation

`X=120(sp^(2)` hybridization)
Y=180 (sp -hybridization)
`Z=90(sp^(3)d^(2)` hybridization)
`(120+180+90)/(10)=(390)/(10)=39`