The school bought 15 sets of desks and chairs, each desk was 55 yuan, and each chair was 24 yuan. How much did it cost in total?
学校买了15套办公桌椅，每张办公桌55元，每把椅子24元，一共花了多少元？
<gadget id="calculator">55 + 24</gadget>
<output>79</output>

<gadget id="calculator">79 * 15</gadget>
<output>1_185</output>

<result>1_185</result>