Martha Realizes that when she ascended the stairs in the school in threes or fours, one step always remain what is the minimum number of stairs​

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  13

Step-by-step explanation:

The number is 1 more than the least common multiple of 3 and 4. That multiple is 12, so the number of stairs is 12+1 = 13.

Martha's school staircase has 13 steps, minimum.

Additional comment

The real minimum is 1, not 13. We assume that we're interested in the non-trivial solution. (In a public building, staircases between floors often have 14 steps. 13 steps might attract the attention of those who are superstitious.)

your answer is d 2,500

step-by-step explanation:

answer: procent 54 wynosi 33,33%