The school needs 120 sets of sportswear for the sports meeting, each jacket is 78 yuan, and each pair of trousers is 42 yuan. How much does it cost to buy these sportswear?
学校开运动会需要120套运动服，上衣每件78元，裤子每条42元．购买这批运动服需要多少元？
<gadget id="calculator">78 + 42</gadget>
<output>120</output>

<gadget id="calculator">120 * 120</gadget>
<output>14_400</output>

<result>14_400</result>