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Question Number 46996 by Raj Singh last updated on 03/Nov/18

	Answered by tanmay.chaudhury50@gmail.com last updated on 03/Nov/18

	$A p e r f o r m \frac{1}{15} p o r t i o n o f w o r k i n 1 d a y$ $B p e r f o r m \frac{1}{20} p o r t i o n o f w o r k i n 1 d a y$ $b o t h p e r f o r m (\frac{1}{15} + \frac{1}{20} = \frac{4 + 3}{60} = \frac{7}{60} p o r t i o n i n 1 d a y$ $b o t h p e r f o r m 6 \times \frac{7}{60} = \frac{7}{10} p o r t i o n i n 6 d a y$ $r e m a i n i n g w o r k = 1 - \frac{7}{10} = \frac{3}{10} p o r t i o n$ $A p e r f o r m \frac{1}{15} p o r t i o n i n 1 d a y$ $A p e r f o r m 1 p o r t i o n i n 15 d a y s$ $s o A p e r f o r m \frac{3}{10} p o r t i o n i n \frac{3}{10} \times 15 = \frac{9}{2} = 4.5 d a y s$
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