In a container, there are sweets of 3 colours, green, gold and pink. There are 138 less pink sweets than gold sweets. The number of pink sweets is ¹₃ more than the green sweets. Given that the number of pink sweets is 28% of the total number of sweets in the container, how many less green sweets are there than gold sweets?

Green sweets	Gold sweets	Pink sweets
	1 u + 138	1 u
3x7		4x7
72%		28%
21%	51%	28%

1 + ¹₃ = ³₃ + ¹₃ = ⁴₃

Yellow sweets : Purple sweets = 3 : 4

The number of pink sweets is repeated.  Make the number of pink sweets the same.

4 x 7 = 28%

Total number of green sweets and gold sweets in percent
= 100% - 28%
= 72%

Number of gold sweets in percent
= 72% - 21%
= 51%

Number of more gold sweets than pink sweets in percent
= 51% - 21%
= 23%

23% = 138

1% = 138 ÷ 23 = 6

Number of less green sweets than gold sweets
= 51% - 21%
= 30%
= 30 x 6
= 180

Answer(s): 180