4. How many numbers of three different digits can be made by using the digits 1, 2, 3, 4,5,6? How many of them are even?​

numbers which can be made from 1,2,3,4,5,6 are-

123456234561345612456123561234612345145362654132365412456132514632356241456312124653652413452631536214

And many more.

you can find the even one by looking at the last digit is even or odd if the last digit is even then the whole number is even ,if the last digit is odd so the whole number is odd

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