A, B तथा C एक काम को 20, 30 और 60 दिनों में कर सकते हैं l A इस काम को B तथा C के प्रति तीसरे दिन की सहायता से कितने दिनों में पूरा कर सकेगा?
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Answered by
3
Answer:
15 days
Step-by-step explanation:
A -----> 20 days
B -----> 30 days
C -----> 60 days
let total work be 60 ( LCM of 20,30&60)
now
efficiency = work/time
so
efficiency of
A = 60/20 = 3
B = 60/30 = 2
C = 60/60 = 1
now
according to the question,
A is assisted by B & C every third day
so
3 days work =
A's 2 days work + (A+B+C) 1 day work
i.e.
=> 3×2 + (3+2+1)
=> 6 + 6 = 12
3 days work = 12
so
1 day work = 12/3 = 4
now
total work will be done in = =>
time = work /efficiency
=> 60/4 = 15 days (answer )
Answered by
2
Answer:
15 day
Step-by-step explanation:
this answer is correct answer
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