find the difference between the greatest and smallest number each of which on rounding off gives 5,400

Dear student,

If the question is "The difference between the greatest and smallest numbers which when rounded off a number to the nearest hundred as 5400 is "

$$\begin{gathered} 5449 is the greatest number that when rounded off to the nearest hundred will become 5400. \\ 5350 is the least number that when rounded off to the nearest hundred will become 5400. \\ \therefore Difference =5449-5350=99 \end{gathered}$$

Regards