Xiao Ming (8 years old), grandpa, grandma, father and mother went to the park to play. It is known that an adult ticket is 15 yuan and a child ticket is 7 yuan. How much does it cost for their family of five?
小明(8岁)、爷爷、奶奶、爸爸、妈妈一家五人去公园游玩．已知一张成人票15元，一张儿童票7元．他们一家五人要花多少元？
<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">60 + 7</gadget>
<output>67</output>

<result>67</result>