How long will it take 5 workers to complete a task, given that 8 workers can compete the same task in 10 days?

8 workers can complete a task in 10 days, meaning the man-hours needed to this task is 80 man-hours.

Hence for 5 workers to complete the same task that require 80 man-hours, 80÷5= 16.

So, it will take 16 days for 5 workers to complete this task.

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.