There are 24 boys in a class. The number of boys is 3 times the number of girls in the class. How many boys and girls are there altogether in the class?

Simon used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 times. the results are shown in the tables below color of marble number of times rolled blue 15 green 19 yellow 16 heads tails 26 24 using simon's simulation, what is the probability of pulling a blue marble and the coin landing tails up? 39/50 250/50 120/2500 360/2500 .