To make 1 lei, Jaynie will need 2.5 x 12 = <<12*2.5=30>>30 plumeria flowers.

To make 4 leis, she will need to pick 30 x 4 = <<30*4=120>>120 plumeria flowers from the trees.

# Answer

120
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jaynie wants to make leis for the graduation party.  It will take 2 and half dozen plumeria flowers to make 1 lei.  If she wants to make 4 leis, how many plumeria flowers must she pick from the trees in her yard?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
120
Jaynie wants to make leis for the graduation party.  It will take 2 and half dozen plumeria flowers to make 1 lei.  If she wants to make 4 leis, how many plumeria flowers must she pick from the trees in her yard?
train