Các câu hỏi tương tự
tim so tu nhien co 2 chu so biet rang neu viet chu so 0 xen giua chu so hang chuc va hang don vi cua so do ta duoc so moi gap 10 lan so can tim . Neu viet them chu so 1 vao ben trai so vua nhan duoc thi so do gap len 3 lan . So can tim la
tim 1 so tu nhien co 2 chu so biet neu viet them chu so 0 vao ben phai va 1 chu so 1 vao ben trai so do thi ta duoc mot so moi bang 50 lan so phai tim?
cac ban giup minh voi minh dang can gap
Tim 1 so tu nhien co 2 chu so , biet rang neu viet them 1 chu so 4 vao ben trai so do thi ta duoc so moi lon hon gap 26 lan so ban dau.
tim 1 so co 2 chu so biet neu them so 9 vao giua 2 so do ta duoc so moi gap so can tim 133 lan
Cho 1 so tu nhien .Neu them 171 vao mot phan 3 so do ta duoc so moi gap 4 lan so cu .Tim so do
tim mot so tu nhien co 3 chu so biet rang neu viet them chu so 2 vao ben phai so do thi duoc so moi gap 17 lan so phai tim
Bai 1 : Cho 1 so tu nhien neu them 28 don vi vao 1/4 so do ta duoc so moi gap 2 lan so can tim , tim so tu nhien do .
Bai 2 : Khoi 5 gom 3 lop co tat ca 102 hoc sinh , biet ti so hoc sinh giua lop 5B voi 5A la 8/9 . Ty so lop 5C va 5B la 17/16 . Tinh so hoc sinh moi lop
bai 1 tim so co 2 chu so va 1 chu so x sao cho khi viet them x vao truoc so do thi duoc so moi gap 3 lan so da cho
bai 2 tim 1 so tu nhien co 2 chu so biet neu viet them 1 chu so so 0 vao giua 2 chu so do thi ta duoc 1 so moi gap 7 lan so do
tim mot so tu nhien biet neu viet them chu so 1 vao ben trai va so 3 vao ben phai do ta duoc so moi chia moi cho so can tim duoc thuong la 31 du 37