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A യ്ക്ക് ഒരു ജോലി പൂർത്തിയാക്കാൻ 12 ദിവസം വേണം.B,A യെക്കാൾ 60% വേഗത്തിൽ ജോലി ചെയ്തു തീർക്കും. എങ്കിൽ A ചെയ്ത ജോലി എത്ര ദിവസം കൊണ്ട് B ഒറ്റയ്ക്ക് പൂർത്തിയാക്കും?

A7 1/2 ദിവസം

B8 3/2 ദിവസം

C5 1/7 ദിവസം

D6 1/5 ദിവസം

Answer:

A. 7 1/2 ദിവസം

Read Explanation:

A യും B യും ജോലി ചെയ്യുന്ന അംശബന്ധം : 160:100 160:100=8:5 8:5=12:x 8x=12*5 x=(12*5)/8=7 1/2 ദിവസം


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