Credit, Loans and Interest

A phone costs ₹24,000. A "buy now, pay later" plan offers 12 monthly EMIs of ₹2,200 each. Aarav thinks the EMI total is still the same price, just split into smaller pieces. His cousin Kritika disagrees. Who is right?

A loan is advertised as "just 10% interest." Naina thinks that means the interest is the only extra cost of the loan. Her father says there's usually also a "processing fee" charged separately from the interest. Who is right?

A credit card bill is ₹10,000, with a "minimum due" of ₹500. Mehar thinks paying the ₹500 minimum settles that month's bill completely, with nothing left owing. Her brother Rehan disagrees. Who is right?

₹10,000 is invested at 10% interest per year, for 2 years. Vikram says both years earn the same amount of interest, so the 2-year total is just double the first year's interest. His friend Ira says the second year earns slightly more, because interest is calculated on the growing amount, not just the original ₹10,000. Who is right?