Question

If a job is to be completed in 10 days, it requires 270 persons. If 180 persons
take up the same job, they will finish it in
(A)
20 days
(B)
18 days
(C) none of these
(D) 15 days​

Answer 1

Answer:

270 person does work in =10days

1 person will do it in = 10×270days

Hence 180 person will do it in =10×270÷180=15days

15 days

Answer 2

180 persons will finish the job in 15 days.

Step-by-step explanation:

270 persons complete a job in number of days = 10

Number of days taken by 180 persons to complete the same job = x days

By applying equivalent method :

$\frac{270}{180}= \frac{x}{10}$       [By cross multiplication]

180x = 2700

x = $\frac{2700}{180}$

x = 15

180 persons will finish the same job in 15 days.

Therefore, Option D 15 days is the answer.

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