(1) A shopkeeper gives three successive discounts of 20%, 10% and 10% on his goods. If the list price of an article in his shop is Rs.1600 and Sales tax on it is 15% of its sale price, find how much a customer will have to pay for it.
(2) A shopkeeper marks his goods 40% above the cost price and then allows two successive discounts of 10% each. Find how much will a customer pay for an article which costs the shopkeeper Rs. 700 and a Sales tax of 8% is levied on the sale price of the article. (Give your answer correct to the nearest rupee.)