Answer:
B: 15 hours
Step-by-step explanation:
Since Dara spends 2 hours reading 72 pages, we can conclude that she spends 1 hour reading 36 pages.
Since we are finding how long it would take for her to read 540 pages, we would divide 540 by 36, which is 15.
it's A because it's not B or C
1/12
Probability of an even number
3/6 = 1/2
Probability of one showing up
1/6
Probably of even number on first try and 1 on second try
1/2 * 1/6 = 1/12