Puzzle

[tpw536w]

if 1 Elk - 1 Polar bears = 1 penguin
& 1 Elk + 3 penguins = 3 polar bears
then
1 Polar bear + 1 elk = ?

Thanks for any help

[bibblebub]

5 penguins

[tpw536w]

great thanks but how did you reach that answer please

[tommy.toon]

I got 5 penguins as well

elk=4 polar bear=2 penguin=1

[bibblebub]

simple algebra - let E = elk, B = bear, P = penguin

1st equation: E - B = P
rearranged: E - P = -B

2nd equation: E + 3P = 3B

subtract rearranged 1st from the 2nd to get: 4P = 2B i.e. B = 2P
substitute that in 1st equation to get: E = 3P

thus 3rd equation gives: B + E = 2P + 3P = 5P

[tommy.toon]

OOPS elk=3

[tpw536w]

Thanks again