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⟩ You spend 21 Euros on meat in a supermarket. You buy a turkey, a chicken and a salmon. The salmon costs half the cost of the turkey and the chicken costs half as much as the salmon. How much did the turkey cost?

Use simple algebra. Say cost of chicken = x, then cost of salmon is 2x and cost of turkey is 4x

Therefore total cost = x + 2x + 4x = 7x

7x = 21 Euros

Therefore x = 3 Euros

Turkey costs 4x which is 12 Euros

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