In a box, there are chocolate bars of 3 colours, white, brown and green. There are 128 more brown chocolate bars than green chocolate bars. The number of green chocolate bars is ¹₄ more than the white chocolate bars. Given that the number of green chocolate bars is 30% of the total number of chocolate bars in the box, how many more brown chocolate bars are there than white chocolate bars?

White chocolate bars	Brown chocolate bars	Green chocolate bars
	1 u + 128	1 u
4x6		5x6
70%		30%
24%	46%	30%

1 + ¹₄ = ⁴₄ + ¹₄ = ⁵₄

Yellow chocolate bars : Purple chocolate bars = 4 : 5

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

5 x 6 = 30%

Total number of white chocolate bars and brown chocolate bars in percent
= 100% - 30%
= 70%

Number of brown chocolate bars in percent
= 70% - 24%
= 46%

Number of more brown chocolate bars than green chocolate bars in percent
= 46% - 24%
= 16%

16% = 128

1% = 128 ÷ 16 = 8

Number of more brown chocolate bars than white chocolate bars
= 46% - 24%
= 22%
= 22 x 8
= 176

Answer(s): 176