Task: Question Answering
Input (English): Problem: a hiker walked for 3 days . she walked 18 miles on the first day , walking 3 miles per hour . on the second day she walked for one less hour but she walked one mile per hour , faster than on the first day . on the third day she walked at 7 miles per hour for 2 hours . how many miles in total did she walk ? 
Options: a ) 24 , b ) 52 , c ) 58 , d ) 60 , e ) 62
Output (English): b