Sainik School Entrance Exam 2021 Solved Paper

Question : 38 of 150

Marks: +1, -0

If 15 workers can build a wall in 48 hours, how many workers will be required to do the same work in 30 hours?

Solution:

n

workers will be required to do the same work in 30 hours.

M_1 ×H_1=M_2 ×H_2

⇒ 15 ×48=n ×30 ⇒ n={15 ×48}/{30}=24

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