2/7 because both 8 and 28 are divisible by 4
4 *3 = 12
12 * 20 = 240
240 / 2 = 120 units^3
answer is C
As soon as you see "How many times . . .", that usually tells you that finding the answer involves <em>division</em>. (It certainly does in this one.)
(1.2 x 10⁵) / (4.9 x 10³) =
(1.2/4.9) x (10⁵⁻³) =
0.245 x 10² = <em>24.5 times</em>
It looks like <em>B</em> is the closest choice.
