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Time-and-Work

Raj can do a piece of work in 20 days. He started work and left after some days, when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do complete work, working toger?


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There are three boats A, B and C, working together they carry 60 people in each trip. One day an early morning A carried 50 people in few trips alone. When it stopped carrying the passengers B and C started carrying the people together. It took a total of 10 trips to carry 300 people by A, B and C. It is known that each day on an average 300 people cross the river using only one of the 3 boats A, B and C. How many trips it would take to A to carry 150 passengers alone?

Raj can do a piece of work in 20 days. He started work and left after some days, when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do complete work, working toger?

If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:

Raj can do a piece of work in 20 days. He started the work and left after some days

when 25% work was done. After it Abhijit joined and completed it working for 10 days. In how many days Raj and Abhijit can do the complete work

working together?

Time and Work

Arithmetic-Aptitude