A contractor estimates that 3 persons could rewire Jasminder's house in 4 days. If,
he uses 4 persons instead of three, how long should they take to complete the job?
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Answer:
According to the estimation in rewiring Jasminder's house
Number of persons required =3
Number of days required =4
So, to rewire a house by 1 person it will take 4×3=12 days
And to do job by 4 persons, days required =
12/4
=3 days
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