The ratio of the kilograms of pears in two fruit stores, A and B, is 5:4. Store A sells 45 kilograms, and store B brings in 45 kilograms. Then the ratio of the kilograms of pears in the two stores is 5:7. How many?
甲、乙两个水果店梨的千克数之比是5：4，甲店卖出45千克，乙店运进45千克，那么这两店梨的千克数之比5：7，甲店原有多少？
<gadget id="calculator">5 * 21.6</gadget>
<output>108</output>

<result>108</result>