Aunt Zhang bought 50 kilograms of apples and 50 kilograms of pears from a fruit wholesale store, and the total cost was 740 yuan. 9.8 yuan per kilogram of apples, how much is it cost per kilogram of pears?
张大妈从水果批发店买来苹果和梨各50千克，共用740元．每千克苹果9.8元，每千克梨要多少元？
<gadget id="calculator">740 / 50</gadget>
<output>74/5 = around 14.8</output>

<gadget id="calculator">(74/5) - 9.8</gadget>
<output>5</output>

<result>5</result>