Question

Two persons can complete a piece of work in 9 days. How many more persons are needed to complete double the work in 12 days?​

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