You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[Q]: A neighborhood grocer sells a mix of chocolate and carob candy . The chocolate cost 2.7 dollars a pound and the carob costs 2.55 dollars a pound . If 20 pounds of the chocolate and 40 pounds of the carob candy are used , what is the cost per pound of the mixture in dollars ?
[A]: 2.6


[Q]: For the school bake sale Maria made 19 cupcakes . If she sold 5 of them and then made 10 more , how many cupcakes would she have ?
[A]: 24


[Q]: On her vacation last summer , Trisha walked all over New York City to buy souvenirs . First , she walked 0.1111111111111111 mile from her hotel to a postcard shop . Then she walked 0.1111111111111111 mile from the postcard shop to a T - shirt shop and 0.6666666666666666 mile from the T - shirt shop back to the hotel . How many miles did Trisha walk in all ?
[A]:
0.8888888888888888