Time and Work - Data Intensity 2 | Multiple Questions and Answers

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Time and Work - Data Intensity 2 Multiple Questions and Answers.

11.	Two pipes P and Q can fill a cistern in 12 minutes and 16 minutes respectively. Simultaneously both the pipes are opened together, then after how much time Q should be closed so that the tank is full in 9 min ?

	A.	2 min
	B.	3 min
	C.	4 min
	D.	5 min

12.	A can do a certain job in 12 days. B is 60% more efficient than The number of days it takes for B to do the same piece of work, is:_____?

	A.	12/6 days
	B.	15/2 days
	C.	23 days
	D.	34 days

13.	A can do piece of work in 30 days while B can do it in 40 days. In how many days can A and B working together do it ?

	A.	70 days
	B.	120/7 days
	C.	50 days
	D.	45 days

14.	A and B can do a piece of work in 21 and 24 days respectively.They start the work together and after some days, A leaves and B completes the rest of the task in 9 days. After how many days did A leave?

	A.	5
	B.	6
	C.	7
	D.	8

15.	A,B,C, can do a work in 8,14,16 days respectively. A does the work for the first 2 days. B continues from it and finishes 2/3rd of the remaining work. C finishes the remaining work. How many days would have taken to complete the work?

	A.	13
	B.	11
	C.	12
	D.	15

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