gọi số đó là :ab
ab = 8 x (a+b)
10a + b= 8a + 8b
2 x a= 7 x b
vậy ab = 72
gọi số đó là :ab
ab = 8 x (a+b)
10a + b= 8a + 8b
2 x a= 7 x b
vậy ab = 72
tim so co hai chu so biet rang so do lon gap 8 lan tong cac chu so cua no
Tim so tu nhien co hai chu so,biet rang so do lon gap 6 lan tong cac chu so cua no
tim so co 2 chu so biet rang so do lon gap 8 lan tong cac chu so cua no
tim so co hai chu so biet rang so do gap 8 lan tong cac chu so cua no
Tim so tu nhien co 2 chu so biet rang
a. So do gap 6 lan tong cac chu so cua no
b. So do gap 7 lan tong cac chu so cua no
c. So do gap 8 lan tong cac chu so cua no
d. So do gap 9 lan tong cac chu so cua no
tim mot so co 2 chu so biet rang so do gap 6 lan tong cua cac chu so cua no
tim so co 2 chu soac chu so cua no, biet rang so do gap 8 lan tong cac chu so cua no.
tim so co 2 chu so biet so do lon gap 8 lan tong cac chu so cua no
tim so co 2 chu so, biet rang so do gap 8 lan tong cac chu so cua no