Các câu hỏi tương tự
CHO PHAN SO 13/18 .neu them 25 vao tu thi phai them vao mau bao nhieu de gia tri phan so ko doi
tim so tu nhien co 5 chu so biet rang neu viet them chu so 2 vao dang sau thi duoc so lon gap 3 lan so viet them so 2 vao truoc
cho p/s a/b biet rang neu them 6 vao tu so va them 21 vao mau so thi gia tri cua p/s ko thay doi . co bao nhieu phan so nhu vay
tim mot so tu nhien co 3 chu so biet rang neu viet them chu so 2 vao dang truoc thi duoc so lon hon so do 323 don vi khi viet them chu so 3 vao dang sau so do
Tim a la so tu nhien biet khi them a vao ca tu va mau cua so 11/19 thi duoc so 2/3
A cach B 30 km,vao luc 6h mot nguoi di bo tu a-b.Đen 7h 20p mot nguoi di xe dap tu a duoi kip nguoi di bo luc 7h50p.Đen B,nguoi nay quay tro ve A va gap lai nguoi đi bo luc 9h20p.Tinh van toc moi nguoi
Ti so tu nhien co 5 chu so , biet rang neu viet them chu so 2 vao dang sau no thi duoc so lon gap 3 lan so co duoc bang cach viet them chu so 2 vao dang truong so do
tim so tu nhien co 5 chu so biet rang neu viet them chu so 2 vao dang sau so do thi duoc so lon gap 3 lan so do co duoc bang cach viet them chu so 2 vao dang truoc so do
tim so tu nhien co 5 chu so biet rang neu viet them chu so 2 vao
dang sau so do thi duoc so lon gap 3 lan so co duoc bang cach
viet them chu so 2 vao dang truoc so do?