10 and 20
There are 3 such numbers: 30, 60, 90.
12, 18, 24, 30 and 36.
18, 21, 24, 27.
15, 30 & 45
The multiples of 5 that are also multiples of 6 are multiples of their LCM. The LCM of 5 and 6 is 30, so the question becomes which multiples of 30 are less than 100? The solution is the numbers: 30, 60, 90
... 7 x 30 = 210, that should give you a clue...
The multiples of 6 less than 30 are numbers that can be divided evenly by 6 and are less than 30. To find these multiples, you can start by listing the multiples of 6: 6, 12, 18, 24. Therefore, the multiples of 6 less than 30 are 6, 12, 18, and 24.
Multiples of 6 that are less than 36 are: 6, 12, 18, 24, and 30.
10 and 20
6
There are six: 6, 12, 18, 24, 30, 36.
3,6,9,12,15,18,21,24,27
2,4,6,8,10,12,14,16,18,20,22,24,26,and 28
36 and 42
There are 3 such numbers: 30, 60, 90.
These: 6, 12, 18, 24, 30, 36, 42, 48.