Seoul has a population of about 9.5 million people. Statistics show that roughly 20% of residents use bicycles as a primary mode of transportation for recreation or commuting. How many people is this in millions?
1.9 million people (9.5×0.20=1.9).
At Jagalchi Fish Market in Busan, dried seafood is priced at 50,000 won. At the end of the day, the vendor offers a 20%discount. What is the discounted price?
40,000 won (50,000×(1−0.20)=40,000).
Jeju Island is famous for growing Hallabong mandarins. Out of 50 kg of harvested fruit, 12% turned out to be underripe and unfit for sale. How many kilograms of ripe mandarins were ready to be sold?
44 kg.
In Seoul's famous Myeongdong district, a street food snack originally cost 4,000 won. Due to inflation, the price increased by 15%. What is the new price of the snack?
4,600 won (4,000×1.15=4,600).
At the Busan International Film Festival, 200 films were screened, of which 45 were documentaries. What percentage of the total films were documentaries?
22.5%
Last year, a ticket for a guided hike tour around Hallasan Mountain cost 20,000 won, and this year it costs 23,000 won. By what percentage did the ticket price increase?
An increase of 15%.
Tourism in Seoul increased by 10% each year for two consecutive years. If the number of tourists reached 12,100 after the two years, how many tourists were there originally (before the growth)?
10,000 tourists.
At the port of Busan, a chemist mixes 300 kg of a saline solution with a 5% salt concentration with 200 kg of a solution with a 10% salt concentration. What is the percentage of salt in the final combined mixture?
7% salt.
At a souvenir shop on Jeju, a t-shirt was first marked down by 20%, and later due to high demand, the new discounted price was increased by 20%. Is the final price higher, lower, or equal to the original price? Find the overall net percentage difference.
The final price is lower by 4% compared to the original price.