try these exercise 113 solutions

4:34

9:25

57:34

1:12:33

51:08

10:14

51:05

6:44:54

2:13:00

47:47

17:39:17

1:03:37

1:02:05

50:51

5:34:11

1:35:29

58:01

4:59:28

3:36:21

3:53:31

58:31

1:29:24

16:50

2:14:05

11:58

41:10

45:06

4:19

29:20

22:45

25:31

1:15:52

47:21

3:22

5:12

8:44

8:17

35:37

11:48

2:45

4:27

7:35

40:34

23:01

6:13

5:23

7:17

9:19

2:46

5:39

4:58

47:01

49:38

1:16:38

1:15:04

4:45:31

39:43

5:55

20:29

18:16