Question

A can cultivate 2/5 th of a land in 6 days and b can cultivate 1/3 th of the same land in 10 days. working together a and b can cultivate 4/5 th of the land in

Answer 1

Hi ..dear...here is your answer..
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part of field cultivated by A in 1 day = 2/(5×6)=1/15

part of field cultivated by B in 1 day = 1/(3×10)=1/30

part of field cultivated by A and B together = 1/15+1/30=3/30=1/10

4/5 part of field cultivated by A and B together in  = (4/5)/(1/10) days = (4×10)/5=8 days..hope it helped you.....