George, Ryan and Clifford collected beads in the ratio of 12 : 9 : 8. After Clifford gave ⁴₅ to George and Ryan, Clifford had 660 less beads than George. The number of beads that Ryan had increased by 40%. How many beads did George and Clifford have in the end?

	George	Ryan	Clifford
Before	12 u	9 u	8 u
Change	+ 2.8 u	+ 3.6 u	- 6.4 u
After	14.8 u	12.6 u	1.6 u

Number of beads that Clifford gave to George and Ryan
= ⁴₅ x 8 u
= 6.4 u

Number of beads that Ryan received from Clifford
= ⁴⁰₁₀₀ x 9 u
= 3.6 u

Number of beads that George received from Clifford
= 6.4 u - 3.6 u
= 2.8 u

Number of less beads that Clifford had less than George
= 14.8 u - 1.6 u 
= 13.2 u

13.2 u = 660

1 u = 660 ÷ 13.2 = 50

Number of beads that George and Clifford had
= 14.8 u + 1.6 u
= 16.4 u
= 16.4 x 50
= 820

Answer(s): 820