Valen, Harry, Brandon and Liam paid a total of $90 for a present. Liam paid ⁴₅ of what the rest paid. Valen paid 25% of what the rest paid. Harry and Brandon paid an equal amount of money. How much did Brandon pay?

Valen	Harry	Brandon	Liam	Total
5x5			4x5	9x5
1x9	4x9			5x9
	1	1
9 u	8 u	8 u	20 u	45 u

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

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

Amount that Harry, Brandon and Liam paid = 36 u

Amount that Harry and Brandon paid
= 36 u - 20 u
= 16 u

The amount that Harry and Brandon each paid is the same.

Amount that Harry and Brandon each paid
= 16 u ÷ 2
= 8 u

Cost of the present = 45 u

45 u = 90

1 u = 90 ÷ 45 = 2

Amount that Brandon paid
= 8 u
= 8 x 2
= $16

Answer(s): $16