你即將離開本站

並前往https://www.abc.net.au/science/surfingscientist/pdf/conundrum9.pdf

Conundrum # 9 Hourglass Problem - ABC

Suggestion for illustrating the “Hourglass Problem” conundrum. Solution: Flip both timers over. When the 4-min timer is empty, flip it over (the 7-min timer ...

確定！ 回上一頁

查詢 「4 minute timer」的人也找了：

  1. 4 Minute timer
    2.
  2. Timer
    3.
  3. 5 minute timer
    4.
  4. 1 minute timer
    5.
  5. 30 minute timer
    6.
  6. Mr timer 4
    7.
  7. 6 Minute timer
    8.
  8. 40 minute timer
    9.