A shopkeeper marks the price of an article 30% above its cost price and gives a customer discount of 15%. A customer
bought that article including 13% VAT at Rs 1872.975. Find
the marked price of the article and the gain of shopkeeper.

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Step-by-step explanation:

since the order of choosing out students to hand out papers doesnt matter because the paper handed is just the same and that the purpose or task of each student is just the same, combination should be used. Otherwise, when the order is based on ranking of students for example, permutation is used. answer is true