baskets of apples are 12.5 kilograms lighter than 4 baskets of pears. It is known that each basket of pears weighs 25.4 kilograms. How much does each basket of apples weigh? (Write the equivalent relationship first, and then use the equation to solve it)
3筐苹果比4筐梨轻12.5千克，已知梨每筐重25.4千克，苹果每筐重多少千克？(先写等量关系式，再用方程解)
<gadget id="calculator">24.5 * 4</gadget>
<output>98</output>

<gadget id="calculator">98 - 12.5</gadget>
<output>85.5</output>

<gadget id="calculator">85.5 / 3</gadget>
<output>28.5</output>

<result>28.5</result>