The successive discounts of 29%, 18% and 9% are equivalent to a single discount of: (Rounded up to two decimal places.)

Correct option is A

Given:

​Two successive discounts: 29%, 18% and 9%
​Formula Used:
​Single Discount = $$1 - (1 - \frac {d_1}{100}) × (1 - \frac{d_2}{100}) × (1 - \frac{d_3}{100}).$$​​​
​Solution:
​Single Discount = 1 - $$(1 - \frac {29}{100}) × (1 - \frac{18}{100})× × (1 - \frac{9}{100})$$​​​
​Single Discount= 1 - 0.71 × 0.82  ×  0.91
​Single Discount= 1 - 0.529802
​Single Discount = 0.470198
Discount = 47.02%