Risposta 29 euro
sommatoria Σ = 62+41+64+113 = 280,0 €
media = Σ / 4 = 280/4 = 70,0 €
Be ⇒ Te = 70-41 = 29,0 €
Be ⇒ Ma = 70-62 = 8,0 €
Be ⇒ Ed = 70-64 = 6,0 €
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