The rates of working of A and B are in the ratio of 2 : 3. The number – McqOptions

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1.	The rates of working of A and B are in the ratio of 2 : 3. The number of days taken by each of them to finish the work is in the ratio :
A.	2 : 3
B.	4 : 9
C.	3 : 2
D.	9 : 4
Answer» D. 9 : 4

Discussion

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