Scales, pencils and erasers are available in packets of 6, 10 and 12 respectively. If a shopkeeper wants to buy equal number of these items, then what is the minimum number of packets of scales, pencils and erasers respectively he needs to buy ?
1
9, 7, 5
2
8, 8, 8
3
10, 6, 5
4
6, 5, 10