1) For this typical french meal :
Yvette ate 6 snails and 8 frogs.
Jean-Claude ate 4 snails and 12 frogs.
Ginette ate 3 snails and 2 frogs.
Gérard ate 5 snails and 3 frogs.
And Gertrude ate 4 snails and 3 frogs.
At the end of the evening 22 snails and 28 frogs were eaten.
2) We know that 2 snails cost 3 euros and 1 frog costs 2 euros so :
2 x 28 = 56 euros
2 snails = 3 euros
22 sanils =? –> (22 x 3) / 2 = 33 euros
The result is 33 + 56 = 89 euros
The family must pay 89 euros for Christmas
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