The speed of the jeep is 15% faster than the speed of the van. What percentage of the speed of the jeep is the speed of the van?
吉普车的速度比面包车的速度快15%，吉普车的速度是面包车速度的百分之几？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<result>23/20 = around 1.15</result>