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A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only.
Then, C alone can do the job in how many days ?
C alone can do the job in 48/5 = 9.6 days!
Let's say C can do the work alone in X days then;
1 day of work combined = 1/16+1/12+1/X = 1/4
by solving, we get 3X+4X+48 = 12X >> 5X=48 >> X=48/5 = 9.6 days.
A lays 1/16 distance per day; B lays 1/12 distance per day. With C, they lay 1/4 distance per day. So:
1/16 +1/12 + 1/C=1/4
C=48/5 days that it would take for C to do the job alone
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?
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.
If A men working A hours a day can do A units of a work in A days, then how many units of work can be completed by B men working B hours per day.
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?
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