Successive discounts of 15% and 35% is equivalent to a single discount of:

42.28% 12.5% 44.75% 33.33%

44.75%

Successive discount = X + Y - $\frac{XY}{100}$ X = 15%, Y = 35% Successive discount = 15 + 35 - $\frac{15 \times 35}{100}$                              = 50 - 5.25 = 44.75%