Question

The distance (in $\text{m}$) between two cars traveling on the road is written in scientific notation as $a\times b^2$ . What can be the minimum distance between them?

• A. $1000\text{m}$
• B. $25\text{m}$
• C. $100\text{m}$
• D. $500\text{m}$

Answer 1

The correct option is C $100\text{m}$

Detailed step-by-step solution:
The distance between the two cars, $S=a\times b^2$

$\because a\times b^2$ is in scientific notation.

$\because 1\le a<10\text{and}b=10$

The minimum value of a will be $1$.
So, the minimum distance between two cars, $S=1\times {10}^2$

$\Rightarrow S=100\text{m}$

➡ Option D is correct.