Answer:
Step-by-step explanation:
Red:black = 1:1
Red cards = x
Black cards =x
x + x = 48
2x = 48
x = 48/2
x = 24
No. of red cards = 24
No of black cards = 24
Now 8 red cards are removed
So, No. of red cards = 24 - 8 =16
Red: Black = 16:24
Red: Black = 2:3
Answer:
Step-by-step explanation:
The general formula for a probability is:
The favorable events for the cube to fall in a even number are:
2, 4, and 6 ⇒ <u>3 favorable events</u>
and in the cube the total events are:
1, 2, 3, 4, 5, 6 ⇒ <u>6 total events</u>
So the probability of rolling an even number in the cube is:
Now we do something similar to find the probability to choose a card with an even number.
The favorable events for an even numbered card are:
2, 4 ⇒<u> 2 favorable events</u>
and the total number of events in the cards is:
1, 2, 3, 4, 5 ⇒ <u>5 total events</u>
Thus, the probability to choose an even numbered card (according to the probability formula) is:
And finally, since we want both things to happen we must multiply both obtained probabilities:
The probability is 1/5 which is equal to 0.2 or 20%