Some fish, some dogs and some children are swimming in a bay. There are 40 legs in total, twice as many heads as tails and more dogs than fish. How many fish are in the bay?

Some fish, some dogs and some children are swimming in a bay. There are 40 legs in total, twice as many heads as tails and more dogs than fish. How many fish are in the bay?

Answer: Fish hasn’t got any legs. Dogs have 4 legs and a child has 2 legs.
All of them have heads.
If we say there are t tails there are 2t heads.

Let’s say x for child, y for dogs z for fish.

4y + 2x = 40 (i)
2z = x + y (ii)
z> y (iii)

from (i) and (ii) 2y + 4z = 40 .. in the question said that z > y and 4y + 2x = 40 .. Now, let’s look the opitons because this riddle have 3 answers.

for y = 2, z=9, x = 16
for y = 4, z = 8, x = 14
for y = 6, z = 7, x = 8

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