In a container, there are lollipops of 3 colours, blue, green and black. There are 30 less black lollipops than green lollipops. The number of black lollipops is ¹₅ more than the blue lollipops. Given that the number of black lollipops is 30% of the total number of lollipops in the container, how many less blue lollipops are there than green lollipops?

Blue lollipops	Green lollipops	Black lollipops
	1 u + 30	1 u
5x5		6x5
70%		30%
25%	45%	30%

1 + ¹₅ = ⁵₅ + ¹₅ = ⁶₅

Yellow lollipops : Purple lollipops = 5 : 6

The number of black lollipops is repeated.  Make the number of black lollipops the same.

6 x 5 = 30%

Total number of blue lollipops and green lollipops in percent
= 100% - 30%
= 70%

Number of green lollipops in percent
= 70% - 25%
= 45%

Number of more green lollipops than black lollipops in percent
= 45% - 25%
= 15%

15% = 30

1% = 30 ÷ 15 = 2

Number of less blue lollipops than green lollipops
= 45% - 25%
= 20%
= 20 x 2
= 40

Answer(s): 40