Step-by-step explanation:
A factory produce 60 TV = 7 days
A factory produce 400 TV = 20 days
60×7
420
420-400
20 days
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Answers & Comments
Step-by-step explanation:
A factory produce 60 TV = 7 days
A factory produce 400 TV = 20 days
60×7
420
420-400
20 days