Question

write all number less than 100 which are common multiple of 3&4

Answer 1

Common multiple of 3 which are less than 100 are:
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66,69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99

common multiple of 4 which are less than 100 are:
4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88,92,96.