Explanation of the steps:
Cat ++ Mouse =8kg=8ππ
Dog ++ Mouse =11kg=11ππ
Dog ++ Cat =15kg=15ππ
β2(β2(Cat ++ Mouse ++ Dog)=8+11+15=34)=8+11+15=34
ββ Cat ++ Mouse ++ Dog =34:2=17(kg).
Explanation of the steps:
Cat ++ Mouse =8kg=8ππ
Dog ++ Mouse =11kg=11ππ
Dog ++ Cat =15kg=15ππ
β2(β2(Cat ++ Mouse ++ Dog)=8+11+15=34)=8+11+15=34
ββ Cat ++ Mouse ++ Dog =34:2=17(kg).
