The distance between two planets is 3.00 × 10^6 light years. What is the distance between the two planets, in parsecs? (1 parsec = 3.26 light years)  Choose one.
A) 9.3 × 10^5  B) 9.2 × 10^5  C) 9.3 × 10^7  D) 9.9 × 10^7  E) 10.1 × 10^8
3.00*10^6 light years = 3.00*10^6/3.26 parsecs.   3.00/3.26 is a little bit less than 1, something like 0.9, thus 3.00*10^6/3.26 = ~0.92*10^6 = 9.2*10^5.   Answer: 9.2 × 10^5.
<result>B</result>
The distance between two planets is 3.00 × 10^6 light years. What is the distance between the two planets, in parsecs? (1 parsec = 3.26 light years)