Question

In the given question, select the related number from the given alternatives.
$100$ $:$ $102$ $:$ $:$ $100000$ $:$ $?$

• A. $105$
• B. $104$
• C. $1003$
• D. $1004$

Answer 1

Answer: (A)

$105$

Given that,

$100:102$

The rule used here is, as $100$ has $2$ zeroes, we replace unit digit of $100$ with $2$.

Similarly, as $100000$ has $5$ zeroes, we replace unit digit of $100$ with $5$.

$\Rightarrow$ $100:102::10000:105$