Question

A can do a job in 20 days, B in 30 days and C in 60 days. If A is helped by Band C on every third day,
then in how many days will the job be finished?
od Sonia can cony 300 pages in 40 hours. In how much​

Answer 1

Answer:

Amount of work A can do in 1 day = 1/20

Amount of work B can do in 1 day = 1/30

Amount of work C can do in 1 day = 1/60

A is working alone and every third day B and C is helping him

Work completed in every three days = 2 × (1/20) + (1/20 + 1/30 + 1/60) = 1/5

So work completed in 15 days = 5 × 1/5 = 1

The work will be done in 15 days

hope this helps..

Step-by-step explanation:

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