The correct option is D 106
As we know in a magic hexagon the number in rectangle is a product on numbers in adjacent circles. So 14×8=Q
So, Q=112
Then , 14×6=P
So, P=84
Then, 15×6=RSo, R=90
Also P+Q+R=84+112+90=286
Then, 15×4=ASo, A=60
Then, 4×10=BSo, B=40
Then,10×8=CSo C=80
Also A+B+C=60+40+80=180
Hence (P+Q+R)-(A+B+C)=106