What is the shortest length which can be divided into 5 cm, 7 cm or 10 cm portions without any remainder?
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70
Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70
Multiples of 10: 10, 20, 30, 40, 50, 60, 70
Shortest length that can be divided
= Lowest common multiple of 5 cm, 7 cm and 10 cm
= 70 cm
Answer(s): 70 cm