Mom goes to the market to buy fruit, and buys 5kg of bananas and grapes each. The unit price of bananas is 4 yuan, and it costs 10 yuan more to buy grapes than to buy bananas. What is the unit price of grapes?
妈妈去市场买水果，香蕉和葡萄各买了5kg，香蕉的单价是4元，买葡萄比买香蕉多花了10元钱，葡萄的单价是多少？
<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<gadget id="calculator">2 + 4</gadget>
<output>6</output>

<result>6</result>