A shop owner offers the following discount options on an article to a customer:
1. Successive discounts of 10% and 20%, and then pay a service tax of 10%
2. Successive discounts of 20% and 10%, and then pay a service tax of 10%
3. Pay a service tax of 10% first, then successive discounts of 20% and 10%
Which one of the following is correct?
1
1 only is the best option for the customer.
2
2 only is the best option for the customer.
3
3 only is the best option for the customer.
4
All the options are equally good for the customer.