https://zh.ketiadaan.com/post/hanhan-bought-several-bananas-for-14-yuan-each-and-at-least-one-apple-each-for-30-yuan-at-the-good-fresh-fruit-stand-at-the-checkout-it-cost-a-total-of-960-yuan-which-of-the-following-statements-about-hanhans-shopping-is-wrong