Oscar, Seth, Jenson and Reggie paid a total of $70 for a souvenir. Reggie paid ²₅ of what the rest paid. Oscar paid 25% of what the rest paid. Seth and Jenson paid an equal amount of money. How much did Jenson pay?

Oscar	Seth	Jenson	Reggie	Total
5x5			2x5	7x5
1x7	4x7			5x7
	1	1
7 u	9 u	9 u	10 u	35 u

25%= ²⁵₁₀₀= ¹₄
Oscar's share : Total share = 1 : 4

The total amount paid for the souvenir is repeated.  Make the total amount the same.  LCM of 7 and 5 is 35.

Amount that Seth, Jenson and Reggie paid = 28 u

Amount that Seth and Jenson paid
= 28 u - 10 u
= 18 u

The amount that Seth and Jenson each paid is the same.

Amount that Seth and Jenson each paid
= 18 u ÷ 2
= 9 u

Cost of the souvenir = 35 u

35 u = 70

1 u = 70 ÷ 35 = 2

Amount that Jenson paid
= 9 u
= 9 x 2
= $18

Answer(s): $18