There are three content creators, 'P,' 'Q,' and 'R.'

Solution

ATQ, Efficiency of creators 'P' = (32/8) = 4 short videos/minute Efficiency of creators 'Q' = (36/6) = 6  short videos/minute Efficiency of creators 'R' = (20/4) = 5  short videos/minute Work done on first minute = (4 + 6) × 1 = 10  short videos Work done on second minute = (6 + 5) × 1 = 11  short videos Work done on third minute = (4 + 5) × 1 = 9  short videos So, the work done on first three days = 10 + 11 + 9 = 30  short videos ATQ, Total time taken in video creation = (450/30) × 3 + (9/10) × 1 = 45 + 0.9 = 45.9 minutes