In a container, there are chocolate bars of 3 colours, grey, blue and green. There are 196 more blue chocolate bars than green chocolate bars. The number of green chocolate bars is ¹₅ more than the grey chocolate bars. Given that the number of green chocolate bars is 18% of the total number of chocolate bars in the container, how many more blue chocolate bars are there than grey chocolate bars?

Grey chocolate bars	Blue chocolate bars	Green chocolate bars
	1 u + 196	1 u
5x3		6x3
82%		18%
15%	67%	18%

1 + ¹₅ = ⁵₅ + ¹₅ = ⁶₅

Yellow chocolate bars : Purple chocolate bars = 5 : 6

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

6 x 3 = 18%

Total number of grey chocolate bars and blue chocolate bars in percent
= 100% - 18%
= 82%

Number of blue chocolate bars in percent
= 82% - 15%
= 67%

Number of more blue chocolate bars than green chocolate bars in percent
= 67% - 15%
= 49%

49% = 196

1% = 196 ÷ 49 = 4

Number of more blue chocolate bars than grey chocolate bars
= 67% - 15%
= 52%
= 52 x 4
= 208

Answer(s): 208