sau khi chia cho an va binh me con lai 4 cai keo nen khi me lay ra 1 vien thi binh nhan duoc so keo la :4-1=3cai
truoc luc chia cho binh me co so cai keo la:
3*2+1=7(cai)
vi me chia cho An phan nua cong them 1 cai nen so keo An nhan duoc la:
7+1+1=9 cai
vay luc dau me co so cai keo la:
9+7=16(cai)
dap so 16 (cai)
k cho minh voi nha