A shopkeeper gives a discount of ₹ 12.50 on an article which costs ₹ 50. What is the selling price of the article? How much he will get by selling 11 articles. Round it off to the nearest tens.
₹ 410
Selling Price = ₹ (50 - 12.5) = ₹ 37.5
Value of 11 such articles = 11 × 37.5 = ₹ 412.5
Rounded off to nearest tens = 410