<?php function calculateTotal(float $price, int $quantity, float $discount = 0.0): float { $total = $price * $quantity; $total = $total - ($total * $discount / 100); return $total; } echo calculateTotal(10000, 2) . " ₸<br>"; echo calculateTotal(15000, 3, 10) . " ₸<br>"; echo calculateTotal(5000, 4, 20) . " ₸<br>"; ?>
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