The cost of servicing of a Maruti car at Maruti care Pvt. Ltd. is Rs. 400. Manager of service center told me that for the second service within a year a customer can avail a 10% discount and further for third and forth servicing he can avail 10% discount of the previous amount paid, within a year Further if a customer gets more than 4 services within a year he has to pay just 60% of the servicing charges on these services. A customer availed 5 services from the same servicing station, What is the total percentage discount fetched by the customer?

• 19.42%
• 18.5%
• 17.6%
• 26%