25 students average 84 on a test. Another group of 20 students averages 66. Find the overall average.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
25 students average 84 on a test. Another group of 20 students averages 66. Find the overall average.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
76
25 students average 84 on a test. Another group of 20 students averages 66. Find the overall average.
train