Basic Maths Data Intensity 3 Questions and Answers Discussion Page.

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Basic Maths Data Intensity 3 :: Discussion

4.	P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?
	A.	8/15
	B.	7/15
	C.	11/15
	D.	2/11

	Answer: Option A


	Explanation:
	Amount of work P can do in 1 day = 1/15 Amount of work Q can do in 1 day = 1/20 Amount of work P and Q can do in 1 day = 1/15 + 1/20 = 7/60 Amount of work P and Q can together do in 4 days = 4 × (7/60) = 7/15 Fraction of work left = 1 – 7/15= 8/15



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Published by:Michael Daani

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