The fruit store shipped in a total of 435 kg of apples, oranges and pears. If the orange increases by 15 kg, the ratio of the mass of these three fruits is 15:7:8. Question: How many kilograms of oranges were shipped in?
水果店运进苹果、橘子和梨共435千克．如果橘子增加15千克，这三种水果质量的比是15：7：8．问：原来运进橘子多少千克？
<gadget id="calculator">435 + 15</gadget>
<output>450</output>

<gadget id="calculator">15 + 7 + 8</gadget>
<output>30</output>

<gadget id="calculator">450 / 30</gadget>
<output>15</output>

<gadget id="calculator">15 * 7</gadget>
<output>105</output>

<gadget id="calculator">105 - 15</gadget>
<output>90</output>

<result>90</result>