The number may be either 21, 42, 63, or 84.
7
LCM(16, 42) = 336
31.5
that is 42
427 = 42 tens, plus 7 ones
42
The number may be either 21, 42, 63, or 84.
The number must be 42.
It is: 84/2 = 42
20, 31, 42, 53, 64, 75, 86, 97
7
LCM(16, 42) = 336
31.5
that is 42
Only one number between 0 and 60 has a two in the ones and tens place, and it's 22. However, if you are looking for all the numbers between 0 and 60 that have a two in EITHER the ones OR tens place, they are 2, 12, 21, 22, 23, 24, 25, 26, 27, 28, 29, 32, 42, and 52.
20, 31, 42, 53, 64, 75 ,86, 97, 120, 131, 142, ... 220, 231, 242, ... ...