A dragonfly can fly 95 kilometers per hour, and a swallow can fly 30 kilometers less than twice as fast as a dragonfly per hour. How many kilometers can a swallow fly per hour? what is the correct answer
蜻蜓每小时能飞行95千米，燕子每小时飞行的千米数比蜻蜓每小时飞行的2倍少30千米，燕子每小时飞行多少千米？正确答案是多少
<gadget id="calculator">95 * 2</gadget>
<output>190</output>

<gadget id="calculator">190 - 30</gadget>
<output>160</output>

<result>160</result>