Riordan, Wesley and Clifford collected cards in the ratio of 7 : 7 : 10. After Clifford gave ³₅ to Riordan and Wesley, Clifford had 82 less cards than Riordan. The number of cards that Wesley had increased by 70%. How many cards did Riordan and Clifford have in the end?

	Riordan	Wesley	Clifford
Before	7 u	7 u	10 u
Change	+ 1.1 u	+ 4.9 u	- 6 u
After	8.1 u	11.9 u	4 u

Number of cards that Clifford gave to Riordan and Wesley
= ³₅ x 10 u
= 6 u

Number of cards that Wesley received from Clifford
= ⁷⁰₁₀₀ x 7 u
= 4.9 u

Number of cards that Riordan received from Clifford
= 6 u - 4.9 u
= 1.1 u

Number of less cards that Clifford had less than Riordan
= 8.1 u - 4 u 
= 4.1 u

4.1 u = 82

1 u = 82 ÷ 4.1 = 20

Number of cards that Riordan and Clifford had
= 8.1 u + 4 u
= 12.1 u
= 12.1 x 20
= 242

Answer(s): 242