Question

If 24 workers can build a wall in 15 days, how many days will 8 workers take to build a similar wall? 

Options

• 42 days

• 45 days

• 48 days

• none of these

Answer 1

45 days

Explanation:

Time is taken by 24 workers to build a wall = 15 days

Time taken by 1 worker to build a wall = 24 × 15 = 360 days (clearly less workers will take more time to build a wall)

Time is taken by 8 workers to build a wall = `360/8` = 45 days