11
110.
There are 5 multiples of 9. There are 4 multiples of 12. There is 1 number that is a multiple of both, 36.
56, 63, 70 and 77
There are six: 9, 27, 45, 63, 81,99
the common multiples between 1 and 100 for 9 and 10 are just 90!
100 of them.
11
110.
There are 5 multiples of 9. There are 4 multiples of 12. There is 1 number that is a multiple of both, 36.
56, 63, 70 and 77
Multiples of 9 up to 100 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99. Multiples of 10 up to 100 are 10, 20, 30, 40, 50, 60, 70, 80. 90, 100. The only common multiple up to 100 of 9 and 10 is 90.
They are: 54 63 72 81 90 and 99
90 that is all
Just 90.
54, 63, 72, 81, 90, 99.
There are six: 9, 27, 45, 63, 81,99