Question

two person can complete a piee of work in 9 days how many more persons are needed to conolete double the work in 12 days

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Answer 1

Answer:

1

Step-by-step explanation:

2 person in 9 days

2 person work doubled 18 days

so 1 person double work 18*2 = 36 days

so for work completing in 12 days we need 36/12 = 3 person

i.e. 3 -2 = 1 more person

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