Xiaolan bought 3 bottles of orange juice, gave the salesperson 10 yuan, and got 1.3 yuan back. How much is a bottle of orange juice?
小兰买了3瓶橘子汁，交给售货员10元钱，找回1.3元．每瓶橘子汁多少钱？
<gadget id="calculator">10 - 1.3</gadget>
<output>8.7</output>

<gadget id="calculator">8.7 / 3</gadget>
<output>2.9</output>

<result>2.9</result>