The class is 60% girls because 100 - 40 = <<100-40=60>>60

The class average is 86% because .4(80) + .6(90)= 86

# Answer

86
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A class is 40% boys. The rest are girls. Every boy in class gets an 80% on the math test. Every girl gets a 90%. What is the class average on the test?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
86
A class is 40% boys. The rest are girls. Every boy in class gets an 80% on the math test. Every girl gets a 90%. What is the class average on the test?
train