2 സ്ത്രീകളും 5 പുരുഷന്മാരും ചേർന്ന് 4 ദിവസം കൊണ്ട് പൂർത്തിയാക്കുന്ന ജോലി 3 സ്ത്രീകളും 6 പുരുഷന്മാരും ചേർന്ന് 3 ദിവസം കൊണ്ട് പൂർത്തിയാക്കും. എങ്കിൽ 1 പുരുഷൻ അതേ ജോലി പൂർത്തിയാക്കാൻ എത്ര ദിവസം എടുക്കും ?
A36
B18
C38
D20
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