Question

Find the ascending order of the 5-digit numbers $51,851;98,984;98,459;98,415$.

• A. $98,415<98,459<98,984$
• B. $51,851<98,415<98,459<98,984$
• C. $51,851<98,415<98,984<98,459$

Answer 1

The correct option is B $51,851<98,415<98,459<98,984$

To arrange the numbers, we first compare the leading digits.

Here, $51,851$ is the smallest as the leading digit is smallest, i.e., $5<9$.

Next, we observe that the rest of the numbers have the same leading digits, i.e., 9.

$\therefore$ We compare the next place digit, i.e., thousands place.

Rest three numbers have the same thousands place digit, i.e., 8.

We compare the next place value digit, i.e., hundreds.
$98,984$ is greatest among the given numbers.

$\Rightarrow 98,459\text{and}98,415$ have same hundreds.

Hence, we compare the tens place digit $\to 1<5$
$\therefore 98,415<98,459$

we arrange the number is ascending order:

$51,851<98,415<98,459<98,984$