Mathematics
Percentages: solved problems
Percentage problems: markup, discount, compound interest — with full solutions.
An item went up 20%, then down 20% — how did the price change?The price of an item first rose by 20%, and then the new price fell by 20%. By what percentage does the final price differ from the original one?grades 6–9After a 15% discount an item costs 2550 ₪ — what was the price before the discount?After a price cut of 15% the item costs 2550 ₪. What did it cost before the discount?grades 6–9A deposit of 50 000 ₪ at 10% a year with compounding — how much after 2 years?50 000 ₪ was put on deposit at 10% a year with annual compounding of the interest. What amount will be in the account after 2 years?grades 9–11
