300
Jessie has some chickens and rabbits. There are 30 heads and 76 legs in all. How many chickens does Jessie have and how may rabbits does Jessie have?
What is 22 chickens and 8 rabbits
Solution: First assume Jessie has 30 chickens and no rabbits. In that case, there are 60 legs in all (2 x 30 = 60). There are 16 extra legs. 8 rabbits will provide the extra (compared with rabbits' legs) 16 legs. Therefore there are 22 chickens (30-8=22).