14 Persons can build a house in 60 days. How long will it take 30 persons to build the same house, provided that they all work at the same rate?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 28 days.
Given:
14 Persons can build a house in 60 days
Calculations:
Let 30 persons build the same house in D days
According to the question;
⇒ 14 × 60 = 30 × D
⇒ D = 28 days