Max fills 30 * 2 = <<30*2=60>>60 water balloons

Zach fills 40 * 3 = <<40*3=120>>120 water balloons

Max and Zach have a total of 60 + 120 - 10 = <<60+120-10=170>>170 water balloons

# Answer

170
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Max fills up water balloons for 30 minutes at a rate of 2 water balloons every minute. Max’s friend Zach fills up water balloons for 40 minutes at a rate of 3 water balloons every minute. In the process, 10 of the water balloons pop on the ground. How many filled water balloons do Max and Zach have in total?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
170
Max fills up water balloons for 30 minutes at a rate of 2 water balloons every minute. Max’s friend Zach fills up water balloons for 40 minutes at a rate of 3 water balloons every minute. In the process, 10 of the water balloons pop on the ground. How many filled water balloons do Max and Zach have in total?
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