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A ക്ക് 12 ദിവസം കൊണ്ട് ഒരു ജോലി പൂർത്തിയാക്കാൻ കഴിയും. A യും B യും ചേർന്ന് 8 ദിവസം കൊണ്ട് പൂർത്തിയാക്കാൻ കഴിയും. B മാത്രം ജോലി പൂർത്തിയാക്കാൻ എത്ര സമയമെടുക്കും?

A24 days

B16 days

C20 days

D18 days

Answer:

A. 24 days

Read Explanation:

ആകെ ജോലി = LCM (12, 8) = = 24 A യുടെ കാര്യക്ഷമത = 24/12 = 2 A,B യുടെ കാര്യക്ഷമത = 24/8 = 3 B യുടെ കാര്യക്ഷമത = 3 - 2 = 1 B മാത്രം ജോലി പൂർത്തിയാക്കാൻ എടുക്കുന്ന സമയം = 24/1 = 24


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