Official Solution: A snack pack contains crackers, raisins, and almonds. If there are fewer than 90 raisins in the pack, how many almonds are in the pack? Let \(C\) = crackers, \(R\) = raisins, \(A\) = almonds.
We are told \(R < 90\) and asked for \(A\).
(1) The ratio of crackers to almonds is \(4:3\).
The number of almonds, \(A\), can be any positive multiple of 3. Not sufficient.
(2) The ratio of crackers to raisins is \(5:9\).
The number of almonds, \(A\), is not linked at all. Not sufficient.
(1)+(2) Given:
\(C:A = 4:3\) and \(C:R = 5:9\)
Adjust the ratios so that the number corresponding to \(C\) matches by multiplying the first ratio by 5 and the second by 4:
\(C:A = 20:15\) and \(C:R = 20:36\)
So:
\(C:A:R = 20:15:36\)
Since \(R < 90\), the number of raisins, \(R\), can be 36 or 72. Respectively, the number of almonds, \(A\), can be 15 or 30. Not sufficient.
Answer: E