Mom has a 3-meter blue tape and a 12-meter red tape. How many times longer is the red ribbon than the blue ribbon?
妈妈有3米蓝带子，12米红带子．红带子的长是兰带子的几倍？
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<result>4</result>