Question

If 30 men do 1/7 part of a job in 2 days, how many days will 21 men take to do the job?​

Answer 1

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Answer 2

Answer:

let, the required no. be = x

30 men = 1/7 part in 2 days

30men=14 day to complete a job

x/14 =30/21

x=30/3× 2

x =60/ 30

x=20