A product priced at INR 500 gets a 20% discount then a 5% tax on the discounted price. What is the final price? ​​

A square paper is folded twice, first along the vertical axis and then along the horizontal axis. A small triangle is cut out from the top right corner. When unfolded completely, how many triangles will appear on the paper?

A man buys 3 pens and 2 notebooks for ₹ 76. If a pen costs , what is the cost of a notebook?

In the arithmetic series -5, -3, -1, 1, _____, the nth term is 15. What is the value of n?