Basic Maths Data Intensity 1 Questions and Answers Discussion Page.

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Basic Maths Data Intensity 1 :: Discussion

16.	P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in days?
	A.	12
	B.	15
	C.	22
	D.	20

	Answer: Option A


	Explanation:
	Work done by P in 1 day = 1/15 Work done by Q in 1 day = 1/10 Work done by P and Q in 1 day = 1/15 + 1/10 = 1/6 Work done by P and Q in 2 days = 2 × (1/6) = 1/3 Remaining work = 1 – 1/3 = 2/3 Time taken by P to complete the remaining work 2/3 = (2/3) / (1/15) = 10 days Total time taken = 2 + 10 = 12 days



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Published by:Michael Daani

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