Japheth, Peter, Albert and Julian paid a total of $180 for a souvenir. Julian paid ³₇ of what the rest paid. Japheth paid 20% of what the rest paid. Peter and Albert paid an equal amount of money. How much did Albert pay?

Japheth	Peter	Albert	Julian	Total
7x3			3x3	10x3
1x5	5x5			6x5
	1	1
5 u	8 u	8 u	9 u	30 u

20%= ²⁰₁₀₀= ¹₅
Japheth's share : Total share = 1 : 5

The total amount paid for the souvenir is repeated.  Make the total amount the same.  LCM of 10 and 6 is 30.

Amount that Peter, Albert and Julian paid = 25 u

Amount that Peter and Albert paid
= 25 u - 9 u
= 16 u

The amount that Peter and Albert each paid is the same.

Amount that Peter and Albert each paid
= 16 u ÷ 2
= 8 u

Cost of the souvenir = 30 u

30 u = 180

1 u = 180 ÷ 30 = 6

Amount that Albert paid
= 8 u
= 8 x 6
= $48

Answer(s): $48