Two individuals X and Y can assemble a machine in 12 days. If Y alone – McqOptions

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1.	Two individuals X and Y can assemble a machine in 12 days. If Y alone can assemble it in 48 days; then, X can assemble it single-handedly in:
A.	40 days
B.	24 days
C.	16 days
D.	20 days
Answer» D. 20 days

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