Question

The average distance between the Mercury and Neptune is 29.7 AU. Express this distance in kilometers.

Answer 1

We know that, 1 AU = 1.496 $\times$ ${10}^{11}$ m

So, distance between the Mercury and Neptune = 29.7 AU = 29.7 $\times$ 1.496 $\times$ ${10}^{11}$ m = 44.43 $\times$ ${10}^{11}$ m = 44.43 $\times$ ${10}^8$ km