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

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1.	The rate of working of A and B are in the ratio 2 ∶ 3. The number of days taken by 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

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