gsm8k-0022
1.000
Challenge · difficulty 2/5
# GSM8K Problem 23
Billy sells DVDs. He has 8 customers on Tuesday. His first 3 customers buy one DVD each. His next 2 customers buy 2 DVDs each. His last 3 customers don't buy any DVDs. How many DVDs did Billy sell on Tuesday?
Reason step by step, then give ONLY the final answer on the last line as \boxed{ANSWER}.
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Proposed solution
Let's calculate the total number of DVDs sold by Billy step by step:
1. The first 3 customers buy one DVD each: 3 customers * 1 DVD/customer = 3 DVDs
2. The next 2 customers buy 2 DVDs each: 2 customers * 2 DVDs/customer = 4 DVDs
3. The last 3 customers don't buy any DVDs: 3 customers * 0 DVDs/customer = 0 DVDs
Now, we add up the DVDs sold to each group of customers:
3 DVDs (from the first group) + 4 DVDs (from the second group) + 0 DVDs (from the third group) = 7 DVDs
Billy sold a total of 7 DVDs on Tuesday.
\boxed{7}