Si 22 patos tienen comida para 10 días. Si tenemos 5 patos, ¿cuántos días tendrán comida?

Determine the relationship of ab and cd given the following points

Based on the figures as marked, /\rqs = —

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?