Question

a)
A and B together can finish a piece of work in 30 days. They worked together for 20
days and then A left. After another 20 days, B finished the remaining work. In how
many days B alone can finish the piece of work?​

Answer 1

Answer:

(A + B)'s20day'swork=130×20=23Remainingwork=1−23=13Now,13workisdonebyAin20days∴ThewholeworkwillbedonebyAin20×3=60

Step-by-step explanation:

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