„A? can do a piece of work in 20 days and „B? can do the same work – McqOptions

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1.	„A? can do a piece of work in 20 days and „B? can do the same work in 15 days. How longwill they take to finish the work, if both work together„?
A.	13(1/
B.	days2)10 days
C.	8(4/7) days
D.	17(1/2) days
Answer» D. 17(1/2) days

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