A can do a piece of work n 7 days of 9 hours each and B alone can do it in 6 days of 7 hours each. How long will they take to do it working together 8 2/5 hours a day?
A-63hr B-42hr Lcm will give total work to be done Lcm =126 Work will be completed by both in =126/(a+b)hrs 126/5 hrs
In one day total working hours =8 2/5 or 42/5 Hence 125/5 *5/42 days=3 days ANSWER .
Dhoni can do a piece of work in 80 days. He works at it for 10 days and then Virat alone finishes the work in 42 days. How many number of days would be taken by the two together to finish the work.
A alone can complete a piece of work in 30 days. B is 50% more efficient than A. With the help of C, together they completes the work in 6 days, then C is ____ efficient than ______. Fill in the blanks.
X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?
Aadesh alone can do a piece of work in 6 days and Bhavesh alone in 8 days. Aadesh and Bhavesh undertook to do it for Rs. 3200. With the help of Chetan, they completed the work in 3 days.
How much is to be paid to Chetan?
A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
