Question Number 64381 by ketto2 last updated on 17/Jul/19
Commented by MJS last updated on 17/Jul/19
$$\frac{\mathrm{drawing}}{\mathrm{reality}}=\frac{\mathrm{5}{cm}}{\mathrm{250}{m}}=\frac{\mathrm{5}}{\mathrm{250}}×\frac{{cm}}{{m}}=\frac{\mathrm{1}}{\mathrm{50}}×\frac{\mathrm{1}}{\mathrm{100}}=\frac{\mathrm{1}}{\mathrm{5000}} \\ $$