Question

How many 3 digit even numbers can be formed from the digits 1, 2, 3, 4, 5 if the digits can be repeated?

Answer 1

Answer: 50

Step-by-step explanation:

Let 'S' be the sample space

Therefore,S={112,114,122,124,132,134,142,144,152,154,212,214,222,224,232,234,242,244,252,254,312,314,322,324,332,334,342,344,352,354,412,414,422,424,432,434,442,444,452,454,512,514,522,524,532,534,542,544,,552,554.}

Therefore, n(S)=50

Thus,3 digit even numbers formed from the digits by repetition are 50