Yew Wah School held a Christmas concert and made 36 sets of violin performance costumes and 14 sets of dance costumes. If an average of 1.8 meters of fabric is used for each set, how many meters of fabric are needed in total?
耀华学校圣诞节举行音乐会，做了36套小提琴演出服、14套舞蹈服．如果平均每套用1.8米布料，一共需要多少米布料？
<gadget id="calculator">36 + 14</gadget>
<output>50</output>

<gadget id="calculator">50 * 1.8</gadget>
<output>90</output>

<result>90</result>