Time & Work :-
Q1. A can do a piece of work in 20 days and B can do same work in 30 days. They start the work together. In how many days, the work will be completed?
A किसी कार्य को 20 दिनों में कर सकता है और B उसी कार्य को 30 दिनों में कर सकता है। वे एक साथ काम शुरू करते हैं। तो कार्य कितने दिनों में पूरा हो जाएगा?
(a) 12 days
(b) 15 days
(c) 18 days
(d) 20 days
solution:-
A - 20 - 3 ( one day work)
}
} 60 ( total work )
}
B - 30 - 2 ( one day work)
A+B Together work :-
( A + B ) = 5 ( one day work )
total work / A+B (one day work)
60 / 5 = 12 Ans.
option (a) 12 days.
Answers
Answered by
1
Answer:
I know this A+B Together work :-
( A + B ) = 5 ( one day work )
total work / A+B (one day work)
60 / 5 = 12 Ans.
option (a) 12 days.
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