Question

Aflati cate numere naturale de trei cifre au cifrele din multimea A={1,2,3,4,5} si contin cel putin o cifra para

Answer 1

121,123,124,125,132,134,141,142,143,144,145,152,154,213,214,212,215,221,222,223,224,225,231,232,234,233,235,241,242,243,244,245,251,252,253,254,255,312,314,341,342,343,344,345,352,354,412,413,411,414,415,421,422,423,424,425,431,432,433,431,435,441,442,443,444,445,451,452,453,454,455,512,514,521,522,523,524,525,532,534,541,542,543,544,545,552,554

87 de nr