A bag contains 4 red marbles, 16 yellow marbles, 5 purple marbles, 16 blue marbles, and 10 green marbles. What is the probability of pulling out a red or blue marble?​

Respuesta :

4 red marbles
16 yellow marbles
5 purple marbles
16 blue marbles
10 green marbles

Total marbles 51 marbles

16 blue marbles or 4 red marbles

(16+4)/51= 20/51