Daniel, Riordan and Charlie collected erasers in the ratio of 10 : 7 : 6. After Charlie gave ³₅ to Daniel and Riordan, Charlie had 182 less erasers than Daniel. The number of erasers that Riordan had increased by 30%. How many erasers did Daniel and Charlie have in the end?

	Daniel	Riordan	Charlie
Before	10 u	7 u	6 u
Change	+ 1.5 u	+ 2.1 u	- 3.6 u
After	11.5 u	9.1 u	2.4 u

Number of erasers that Charlie gave to Daniel and Riordan
= ³₅ x 6 u
= 3.6 u

Number of erasers that Riordan received from Charlie
= ³⁰₁₀₀ x 7 u
= 2.1 u

Number of erasers that Daniel received from Charlie
= 3.6 u - 2.1 u
= 1.5 u

Number of less erasers that Charlie had less than Daniel
= 11.5 u - 2.4 u 
= 9.1 u

9.1 u = 182

1 u = 182 ÷ 9.1 = 20

Number of erasers that Daniel and Charlie had
= 11.5 u + 2.4 u
= 13.9 u
= 13.9 x 20
= 278

Answer(s): 278