某班文艺小组购买每张3元、5元的杂技票共计20张,用去76元,问其中

某班文艺小组购买每张3元、5元的杂技票共计20张,用去76元,问其中3元票、5元票各几张?

答案

解:3元票、5元票各x张、y张,

由(13元票的张数+5元票的张数=20张,(2)买3元票的钱数+5元票的钱数=76,解之,

答:3元票、5元票各12张、8.

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