I need a solved numerical example on genetic algorithm for 1 iteration that contains "selection", "crossover", and "mutation"?

[shivajikobardan]

Really need this. Tried googling but not many. 1 or 2 are there. I want this algorithm solved by hand to some problem. IDK what kinds of problems exists. but one is knapsack problem. there is analytics vidya's tutorial but I want sth else, more direct, more clear....Any resource you can show to me? I really need it. This is important for my exam. Asked almost 70% of time.