10 Green marbles, 13 Blue marbles.
He has 10 green marbles.
Let X = the number of green marbles. X+3 = the number of blue marbles. X + (X+3) = 23 2X + 3 = 23 2X = 20 X = 10 or the number of green marbles.
a+b=23 b=a+3 a+b a+(a+3)=23 a+a=23-3 2a=20 a=10 green marbles=10 blue marbles =23-10 =13
It is 1248/57120 = 13/595 = 0.0218 approx.
Number of possibilities for one category / Total of all possibilities. For example, if I had a bag of marbles where there are three white marbles and two black marbles. The probability of pulling out a white marble is how many white marbles are in the bag which is: three. But the total of things you can draw out of the bag can either be one of the three white marbles or one of the two black marbles. 3 white marbles+ 2 Black marbles= five marbles. Possibility is 3/5 for drawing a white marble.
There are 286 possible sets of three, (any 3 from 13). There are 28 pairs of reds and 5 possible greens so probability is 5 x 28 ie 140 out of 286 which is just under half (0.4895).
Three sixteenths, or 19%.
at least 39 blue marbles
It is 15/50 = 0.3
The probability for most of the same colours is most likely green. One of each can be one of each, but there is a small chance you will get more red and yellow than green.
There has to be 12 marbles in the group. If 4 are red that is 1/3 of 12 and if 3 are blue that is 1/4 of 12. The rest can be any color. That is how you explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group :)
Since each of the three colours has an equal chance of being drawn, theoretically if you draw four marbles from the bag, you should have at leas two of the same colour.However, there is a 1/3 (33.33%) chance that the first two marbles you pull out will be the same color. There is just a guarantee that you will have two of at least one color after pulling out four.
To find the answer to probability, first add all the things together (5+3+2=10), then, find the number of things you will be taking from the group of things (3), and put together as a fraction (3/10). So the final answer is 3/10, which is unlikely. :D
If each of three people was supposed to have the same amount of marbles, and there were nine total marbles, it is a division problem: 9/3=3 marbles each. You really need to offer more information.
The maximum number of marbles you have to draw is three. 1) Draw a marble. It is either white or black. 2) Draw a second marble. If it is the same colour as the first marble, we are done after two draws. 3) Otherwise, the drawn marbles have different colours. Draw a third marble. No matter what you draw next, you must have two marbles of the same colour.
Offensive guard Jerry Kramer wrote (with Dick Schaap) three best-selling books about the 1960s Green Bay Packers -- "Instant Replay" (1967), "Jerry Kramer's Farewell to Football" (1979) and "Distant Replay" (1985).
Three shillings and a bag of marbles.
the three Trinidad colors are either red,white,and black;or red,yellow,and green.
Pr = ways_of_success/total_ways Pr(Red) = 3/(5+3+1) = 3/9 Pr(Green) = 1/9 As they are independent: Pr(Red or Green) = Pr(Red) + Pr(Green) = 3/9 + 1/9 = 4/9 ---------------------------------------------------- Alternatively, as there are only three colours, selecting either Red or Green is the same as not selecting Blue: Pr(Red or Green) = Pr(not Blue) = 1 - Pr(Blue) → Pr(Red or Green) = 1 - 5/9 = 4/9