Arshita alone can finish a piece of work in 20 days and Babita alone can do it in 30 days. If both of work at it together, how much time will they take to finish it?
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Answer:
12 Days
Step-by-step explanation:
Work finished by Arshita in one day = 1/20
Work finished by Babita in one day = 1/30
Work finished by both of them in one day = =>1/20+1/30
= 3/60+2/60
= 5/60
= 1/12
=> Time required by both of them to finish the work = 12 Days
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