Let the number of blind students be x.

The number of deaf students will then be 3*x = 3x students.

The total number of students is x + 3x = 180 students.

Combining like terms gives 4x = 180.

So the value of x is 180/4 = <<180/4=45>>45.

# Answer

45
<|im_start|>system
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<|im_start|>user
A special school has a deaf-student population 3 times its blind-student population. If there are 180 students in total, how many blind students are there?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
45
A special school has a deaf-student population 3 times its blind-student population. If there are 180 students in total, how many blind students are there?
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