In a box, there are candy canes of 3 colours, blue, grey and red. There are 210 less red candy canes than grey candy canes. The number of red candy canes is ²₃ more than the blue candy canes. Given that the number of red candy canes is 25% of the total number of candy canes in the box, how many less blue candy canes are there than grey candy canes?

Blue candy canes	Grey candy canes	Red candy canes
	1 u + 210	1 u
3x5		5x5
75%		25%
15%	60%	25%

1 + ²₃ = ³₃ + ²₃ = ⁵₃

Yellow candy canes : Purple candy canes = 3 : 5

The number of red candy canes is repeated.  Make the number of red candy canes the same.

5 x 5 = 25%

Total number of blue candy canes and grey candy canes in percent
= 100% - 25%
= 75%

Number of grey candy canes in percent
= 75% - 15%
= 60%

Number of more grey candy canes than red candy canes in percent
= 60% - 15%
= 35%

35% = 210

1% = 210 ÷ 35 = 6

Number of less blue candy canes than grey candy canes
= 60% - 15%
= 45%
= 45 x 6
= 270

Answer(s): 270