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Alice can do a piece of work in 10 days Anu can do the same work in 12 days and Meera do the work in 15 days. If they work together low long will they take to complete the work?

A4 days

B3 days

C6 days

D8 days

Answer:

A. 4 days

Read Explanation:

X=10 y=12 Z=15 XYZ/(XY+YZ+XZ) =(10*12*15)/(10*12+12*15+10*15) =10*12*15/4=4


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