Ryan purchased an item for which there was a 10% discount offered on the part of the payment made in cash and a 5% surcharge on the part of the payment made through a credit card. If Ryan would have paid the entire amount in cash, he would have paid Rs. 3,240 for the item. But he actually had to pay Rs. 3,672 in all for the item. On what amount did Ryan avail of the 10% discount on offer for cash payment?