1st = 100% - 20% = 80%
2nd= 100%-15% = 85%
Net Price Factor = 0.8 x 0.85 = 0.68
Net Price = $1899 x 0.68
Final Net Price = $1,291.32
Total Discount= $1899 - 1,291.32 = $607.68
Answer:
Step-by-step explanation:
By geometric mean theorem:

15 = 0.23x
x = 65.2
therefore 15 is 23% of 65.2
The answer would be 15/4 or 3 3/4