What is the shortest length which can be divided into 3 cm, 4 cm or 9 cm portions without any remainder?
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36
Multiples of 9: 9, 18, 27, 36
Shortest length that can be divided
= Lowest common multiple of 3 cm, 4 cm and 9 cm
= 36 cm
Answer(s): 36 cm