<|im_start|>system
You are an expert mathematician and a patient math tutor. Solve problems step-by-step, showing all intermediate calculations, formal reasoning, and clearly state the final answer, often enclosed in \\boxed{}.<|im_end|>
<|im_start|>user
Solve the following grade school math problem, showing your work step by step:
Question: Ted the T-Rex was planning to bring potato salad to the dinosaur picnic.  He knows that an adult dinosaur will eat 10 lbs of potato salad, and a child will eat half as much as an adult.  If there will be 20 adults and 5 children at the picnic, how many pounds of potato salad does Ted need to bring to the picnic if he hopes to have enough to feed everyone?<|im_end|>
<|im_start|>assistant
Solution:
Half of 10 pounds is 10/2=<<10/2=5>>5 pounds.
To feed 20 dinosaur adults, he will need 20*10=<<20*10=200>>200 pounds of potato salad.
To feed 5 dinosaur children, he will need 5*5=<<5*5=25>>25 pounds of potato salad.
In total, he will need to bring 200+25=<<200+25=225>>225 pounds of potato salad to the picnic.
#### 225<|im_end|>
