3/4 m 作者: o_yeah 时间: 2018-11-11 00:37
3/4 作者: Miranda98 时间: 2018-11-11 20:30
[Not sure if i can think in this way:
assume: 1n: 6n: 5n :4n
total: 16n
initially, each box has 16n/4=4n marbles
4n--->1n thus 3n marbles were taken out, number of marbles taken out is a multiple of 3