Three workers can do a job 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job alone?

A 30
B 35
C 40
D 42

Correct Answer: 30

1 faster person = 2 slower person  so , 2 faster + one slower = 5 slower person  5 slower person can do the work in 12 days 1  slower person can do the work in (12X5) days = 60 day as, 2 slower = 1 faster  then , 2 slower or 1 faster person can do the work in 60/2 = 30 days ans: 30 days
Bissoy MCQ
#গণিত #সময় ও কাজ (Time and work) #Mercantile Bank Ltd #Mercantile Bank Ltd - Officer - 2004

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