In a container, there are chocolate bars of 3 colours, white, pink and blue. There are 120 less blue chocolate bars than pink chocolate bars. The number of blue chocolate bars is ¹₄ more than the white chocolate bars. Given that the number of blue chocolate bars is 25% of the total number of chocolate bars in the container, how many less white chocolate bars are there than pink chocolate bars?

White chocolate bars	Pink chocolate bars	Blue chocolate bars
	1 u + 120	1 u
4x5		5x5
75%		25%
20%	55%	25%

1 + ¹₄ = ⁴₄ + ¹₄ = ⁵₄

Yellow chocolate bars : Purple chocolate bars = 4 : 5

The number of blue chocolate bars is repeated.  Make the number of blue chocolate bars the same.

5 x 5 = 25%

Total number of white chocolate bars and pink chocolate bars in percent
= 100% - 25%
= 75%

Number of pink chocolate bars in percent
= 75% - 20%
= 55%

Number of more pink chocolate bars than blue chocolate bars in percent
= 55% - 20%
= 30%

30% = 120

1% = 120 ÷ 30 = 4

Number of less white chocolate bars than pink chocolate bars
= 55% - 20%
= 35%
= 35 x 4
= 140

Answer(s): 140