Time and Work - Data Intensity 1 | Multiple Questions and Answers

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Time and Work - Data Intensity 1 Multiple Questions and Answers.

21.	P and Q can complete a work in 20 days and 12 days respectively. P alone started the work and Q joined him after 4 days till the completion of the work. How long did the work last?

	A.	5 days
	B.	10 days
	C.	15 days
	D.	12 days

22.	P can finish a work in 18 days. Q can finish the same work in 15 days. Q worked for 10 days and left the johow many days does P alone need to finish the remaining work?

	A.	8
	B.	6
	C.	4
	D.	2

23.	P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?

	A.	9(3/5) days
	B.	9(1/5) days
	C.	9(2/5) days
	D.	10 days

24.	wo pipes X and Y fill a tank in 15 hrs. and 20 hrs. respectively, while a third pipe �Z� can empty the full tank in 25 hrs. All the three pipes are opened in the beginning. After 10 hrs. Z is close In how much time, will the tank be full ?

	A.	12 hrs
	B.	14 hrs
	C.	16 hrs
	D.	18 hrs

25.	8 men can dig a pit in 20 days. If a man works half as much again as a boy, then 4 men and 9 boys can dig a similar pit in:___?

	A.	12 days
	B.	16 days
	C.	18 days
	D.	20 days

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