<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 In one class in the school, number of abscent students is  $\frac{1}{6}$  of number of students who were present. When teacher sent one student to bring chalk, number of abscent students was  $\frac{1}{5}$  of number of students who were present. How many students are in that class? Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
7
In one class in the school, number of abscent students is  $\frac{1}{6}$  of number of students who were present. When teacher sent one student to bring chalk, number of abscent students was  $\frac{1}{5}$  of number of students who were present. How many students are in that class?
test