Question

Can anyone solve this

Answer 1

Check the picture below.

so if we get the product for each diameter, it'd be what you see in the picture to the left, and the largest is of course the Sun and the smallest is Mercury.

we can simply get their diameters' ratio to see how much larger.

$\cfrac{\stackrel{Sun}{1.392\times 10^6}}{\underset{Mercury}{4.878\times 10^3}}\implies \cfrac{1392\times 10^3}{4.878\times 10^3}\implies \cfrac{1392}{4.878}\times\cfrac{10^3}{10^3}\implies \cfrac{1392}{4.878}\times 1 \\\\\\ \cfrac{1392}{4.878} ~~ \approx ~~ 285.3629~~ \approx ~~ 2.853629 \times 10^2$