Puzzle of the day · No. 19 · 31 October
A bike for a month
Schulz rents out a motorbike for 150,000 dong a day or 3,000,000 a month. From which day of rental is it cheaper for Lucky to take it for the month?
Answer: from the 21st. 3,000,000 / 150,000 = 20. On the twentieth day the two come out equal, and from the twenty-first paying by the day costs more.
Discussion