Question

Star A is approximately 4.2 × 10^13 kilometers away. Star B is approximately 6.3 × 10^15 kilometers away. About how many times as far away is star B as star A?

Answer 1

Let:

A = Distance of star A

B = Distance of star B

Let's find the ratio:

$r=B\colon A=\frac{B}{A}=\frac{6.3\times10^{15}}{4.2\times10^{13}}=150$

Answer:

150 times