5lb chapter 12, percents

[aakalsi]

54. Helen paid $252 for a conference ticket. If she had purchased the ticket one day later, she would
have paid $306. How many days in advance did she purchase the ticket?
(A) 5
(B) 30
(C) 59
(D) 60
(E) 89

Please explain the solution for this problem. Answer is B. 5lb solution is obscure to me.

[tommywallach]

That can't be the whole question. It doesn't make sense.

-t

[tommywallach]

Perhaps you left out a chart or table?

-t