Gọi số cần tìm là : abc
Ta có : abc x 17 = 2abc
abc x 17 = 2 x 1000 + abc
abc x 17 - abc = 2000
abc x ( 17 - 1 ) = 2000
abc x 16 = 2000
abc = 2000 : 16
= 125
Tim mot so tu nhien co 5 chu so , biet rang neu viet them 2 chu so vao ben phai so do thi duoc so lon gap 3 lan so viet them chu so 2 vao ben trai so do .
tim mot so tu nhien co 3 chu so biet rang neu viet them chu so 7 vao ben phai so do thi duoc so moi hon so phai tim la 1222 don vi
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 MOT SO TU NHIEN CO HAI CHU SO,NEU BIET,NEU VIET THEM CHU SO 0 VAO BEN PHAI SO PHAI TIM VA MOT CHU SO 1 CHU SO1 VAO BEN TRAI SO DO THI TA DUOC MOT SÔMI BANG50 LAN SO PHAI TIM
tim mot so tu nhien co hgaichu so biet,neu viet them mot chu so 0 vao ben phai va mot chu so 1 vao ben trai so do thi ta duoc mot so moi bang 50 lan so phai tim
tim so co ba chu so biet rang neu viet them chu so 1 vao ben phai so do thi ta duoc mot so gap 3 lan so co duoc bang cach viet them chu so 2 vao ben trai so do
tim mot so tu nhien co hai chu so biet neu viet them mot chu so 0 vao ben phai va mot chu so 1 vao ben trai so do thi ta duoc so moi bang 50 la so phai tim
tim 1 so tu nhien co2 chu so. biet neu viet them 1 chu so 0 vao ben phai va viet them 1 chu so1 vao ben trai so do thi ta duoc mot so moi bang 50 lan so phai tim.
tim mot so tu nhien co ba chu so , biet neu viet them chu so 6 vao ben phai so do thi duoc so moi hon so phai tim 1761
