The Claude crayon company can make 2400 crayons in 4 minutes which is filled in a box at the same time . If each crayon box has 12 crayons, how many crayon boxes can they make in 15 minutes?
750
Number of crayons that can be filled in 4 minutes = 2400
Hence number of crayons that can be filled in 1 minute = 24004
= 600
Hence number of crayons can be filled in 15 minutes = 600×15
= 9000
Each box has 12 crayons,
∴ Number of boxes required for 9000 crayons = 900012 = 750
∴ crayons for 750 boxes can be made in 15 minutes