hcf and lcm aptitude tricks

21:54

1:10:04

15:46

10:32

52:41

26:05

45:21

12:16

40:34

38:06

44:08

2:40:32

17:16

1:07:28

24:31

50:13

21:56

00:28

22:51

7:07

7:27

25:43

25:12

27:17

25:03

6:04

35:11

00:56

7:15

1:27:24

22:00

18:09

7:22

31:28

1:32:56

39:20

10:23

21:19

13:58

5:30

00:43

1:06:09

13:56

1:24:36

1:02:40

9:51

20:58

6:13

14:37

46:03

00:29

00:54

1:20:35

00:57

00:58

9:10

1:00

26:14

57:36

1:25:21