Matt spent on math and science 30% + 40% = 70% of the time.

This means he did homework from these two subjects for 70/100 * 150 minutes = <<70/100*150=105>>105 minutes.

So Matt spent 150 minutes - 105 minutes = <<150-105=45>>45 minutes doing homework from other subjects.

# Answer

45
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Matt did his homework for 150 minutes. He spent 30% of that time on math and 40% on science. He spent the remaining time on other subjects. How much time did Matt spend on homework in other subjects?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
45
Matt did his homework for 150 minutes. He spent 30% of that time on math and 40% on science. He spent the remaining time on other subjects. How much time did Matt spend on homework in other subjects?
train