Dan has two times as many stickers as Tom. Tom has 3 times as many stickers as Bob. If Bob has 12 stickers, how many does Dan have?
Please answer the following question by reasoning step-by-step.
72
Tom has 3 * 12 = 36 stickers.

Dan has 2 * 36 = 72 stickers.

.

Therefore, the answer is 72