Elijah, Owen and Clint collected erasers in the ratio of 7 : 9 : 4. After Clint gave ⁷₁₀ to Elijah and Owen, Clint had 154 less erasers than Elijah. The number of erasers that Owen had increased by 10%. How many erasers did Elijah and Clint have in the end?

	Elijah	Owen	Clint
Before	7 u	9 u	4 u
Change	+ 1.9 u	+ 0.9 u	- 2.8 u
After	8.9 u	9.9 u	1.2 u

Number of erasers that Clint gave to Elijah and Owen
= ⁷₁₀ x 4 u
= 2.8 u

Number of erasers that Owen received from Clint
= ¹⁰₁₀₀ x 9 u
= 0.9 u

Number of erasers that Elijah received from Clint
= 2.8 u - 0.9 u
= 1.9 u

Number of less erasers that Clint had less than Elijah
= 8.9 u - 1.2 u 
= 7.7 u

7.7 u = 154

1 u = 154 ÷ 7.7 = 20

Number of erasers that Elijah and Clint had
= 8.9 u + 1.2 u
= 10.1 u
= 10.1 x 20
= 202

Answer(s): 202