Q: A, B and C can complete a piece of work separately in 10, 20 and 40 days, respectively. In how many days will the work be completed if A is assisted by both B and C every third day? A, B और C एक कार्य को अलग-अलग क्रमश: 10, 20 और 40दिन में पूरा कर सकते हैं। यदि A को प्रत्येक तीसरे दिन B और C दोनों द्वारा सहायता प्रदान की जाए तो कार्य कितने दिन में पूरा होगा?
A.
6
B.
9
C.
D.
Correct Answer:
Option D -
Explanations:
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