@Jennnyyyyyy Its 18 kg cause
There are 3 TIGERS weigh 36kg means one weigh 12 kg , on the other hand one tiger and one deer so tigers weight is 12kg so 22-12=10 so deer weigh 10kg then in third box 2 LIONS and 1 Deer and deer weighs 10kg we already know so 46-10=36kgs 36kg of 2 Lions So 18kg