Fanny read 4 books in 2 h 55 min. She took the same amount of time to read each of the first 3 books. She took 43 min longer to read the fourth book than each of the first 3 books. She finished reading all the books at 16 29. What time did she start reading the fourth book?
Duration that Fanny took to read the first book = 1 u
Duration that Fanny took to read the second book = 1 u
Duration that Fanny took to read the third book = 1 u
Duration that Fanny took to read the fourth book = 1 u + 43 min

Total duration that Fanny took to read the four books 
= 1 u + 1 u + 1 u + 1 u + 43 min
= 4 u + 43 min

4 u + 43 min = 2 h 55 min
4 u = 175 min - 43 min
4 u = 132 min  

1 u = 132 min ÷ 4 = 33 min

Duration that Fanny took to read the fourth book
= 33 min + 43 min
= 76 min
= 1 h 16 min

1 h 16 min before 16 29: 15 13

Time that Fanny started to read the fourth book = 15 13

Answer(s): 15 13