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ফাস্ট টাইপিং
Niloy can type $500$ words in $10$ minutes and Sajid can type $400$ words in $10$ minutes. How many minutes will they take if they will work together and type $3600$ words in total?
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Niloy can type $500$ words in $10$ minutes and Sajid can type $400$ words in $10$ minutes. How many minutes will they take if they will work together and type $3600$ words in total?