Ahmad, Fabian, Vincent and Sam paid a total of $360 for a souvenir. Sam paid ⁴₅ of what the rest paid. Ahmad paid 25% of what the rest paid. Fabian and Vincent paid an equal amount of money. How much did Vincent pay?

Ahmad	Fabian	Vincent	Sam	Total
5x5			4x5	9x5
1x9	4x9			5x9
	1	1
9 u	8 u	8 u	20 u	45 u

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

The total amount paid for the souvenir is repeated.  Make the total amount the same.  LCM of 9 and 5 is 45.

Amount that Fabian, Vincent and Sam paid = 36 u

Amount that Fabian and Vincent paid
= 36 u - 20 u
= 16 u

The amount that Fabian and Vincent each paid is the same.

Amount that Fabian and Vincent each paid
= 16 u ÷ 2
= 8 u

Cost of the souvenir = 45 u

45 u = 360

1 u = 360 ÷ 45 = 8

Amount that Vincent paid
= 8 u
= 8 x 8
= $64

Answer(s): $64