The offices ordered a total of 3 offices * 10 sandwiches each = <<3*10=30>>30 sandwiches.

So the group of customers must have ordered 54 total sandwiches – 30 sandwiches for the offices = <<54-30=24>>24 sandwiches.

This is a total of 24 sandwiches / 4 sandwiches per customer = <<24/4=6>>6 customers who ordered a sandwich.

As only half the group ordered a bacon sandwich, the entire group must have consisted of 6 customers * 2 = <<6*2=12>>12 customers.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A café has a few orders to cook and also needs to makes sandwiches for a group of customers that arrived. 3 local offices have each ordered 10 bacon sandwiches and half of the group that has arrived have asked for 4 bacon sandwiches each. If the café makes a total of 54 bacon sandwiches, how many customers are in the group of customers that arrived?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
12
A café has a few orders to cook and also needs to makes sandwiches for a group of customers that arrived. 3 local offices have each ordered 10 bacon sandwiches and half of the group that has arrived have asked for 4 bacon sandwiches each. If the café makes a total of 54 bacon sandwiches, how many customers are in the group of customers that arrived?
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