How many strings of 3 lower case english letters are possible that have the letter "t" in them somewhere? here strings may use the same letter more than once?

Total possible number of strings is 26^3 (3 spaces, 26 letters each).

Total that will not include a 't' is 25^3 (3 spaces, 25 letters each).

The number that will include at least one 't' is 26^3 - 25^3

26^3 = 17,576

25^3 = 15,625

17,576 - 15,625= 1,951

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

20%

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