There are 340 black cats and spiders, with 2032 legs. How many of are there?

Question

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Answer 1

c = number of cats with 4 legs

s = number of spiders with 8 legs = 340 - c

 

4c + 8(340 - c) = 2032

 

Can you solve for c, then get s = 340 - c, and finish from here?