M
MysticaElf
Guest
if we have 9 apples all have same weight except one of them is much heavier and we only have 2 tries to weigh them by using a balancing device how can we know the apple which has the greater weight.
note:we can't know that by using hands or any way except the balancing device
- the balance device has 2 balancing sides
note:we can't know that by using hands or any way except the balancing device
- the balance device has 2 balancing sides