It was meant to be a quick stop at the school canteen, but it turned into a puzzle none of them expected. Amy, Ben, and Carla were grabbing snacks before the bus – they went for crisps and cookies.
When the receipts printed, they noticed something strange. Amy’s total was £7 for two bags of crisps and one cookie. Ben had paid £8 for one bag of crisps and two cookies. Carla, who’d picked up three bags of crisps and three cookies, looked at her slip and frowned.
“Mine says £15,” she said. “I thought it would be more than that!”
Ben grinned. “Looks like we’ve got ourselves a snack equation.”
Amy laughed. “We just need to figure out how much each item costs.”
They sat on the canteen steps, comparing totals and scratching numbers into a napkin. The bell rang, the bus honked, and just as they were about to give up, Carla’s eyes lit up. She’d cracked it – the price of a bag of crisps and a single cookie finally made sense.
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