Question 23
Hạnh rolls a four-sided (tetrahedral) die numbered 1,2,3,4 and moves a token:
• An even result moves it forward by that many steps.
• An odd result moves it backward by that many steps.
She rolls 42 times and moves 102 steps in total, counting both forward and backward steps. The number of 2s equals the number of 4s, and the number of 1s is twice the number of 3s. How many forward steps does she take?
• An even result moves it forward by that many steps.
• An odd result moves it backward by that many steps.
She rolls 42 times and moves 102 steps in total, counting both forward and backward steps. The number of 2s equals the number of 4s, and the number of 1s is twice the number of 3s. How many forward steps does she take?