Time & work problems 4

Time & work problems quiz
Time & work problems 4 (with easy way of solving )

Q 1) . X and Y can do a piece of work in 10 days and 6 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. In How many the total work completed ?

Q 2) A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days ?

Q 3) Rajeev and Kunal are working on an assignment. Rajeev takes 6 hours to type 32 pages on a computer, while Kunal takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages ?

Q 4) A, B and C can complete a piece of work in 48,24 and 16 days respectively. Working together, they will complete the same work in how many days?

Q 5) Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work ?

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