Question

A bag contains 4 blue, 5 red and 7 green balls. If a ball is drawn at random,
what is the probability that it is blue​

Answer 1

Answer:

The answer will be 1/4.

Step-by-step explanation:

We have given;

                  4 Blue balls, 5 red and 7 green balls

Now, a probability of an event is given as;

                    = no. of chances of its occurrence / total no. of experiments        (i)

So, total no. of blue ball in bag is 4 or blue ball occurrence in the bag = 4;     (ii)

Now, total no. of balls(experiment) = blue ball + red ball + green ball;          (iii)

                                                          = 4 + 5 + 7;

                                                          = 16;

Using equation (i), (ii) and (iii), the we can be deduced that;

                         = 4 / 16;

                         = 1/4;

Hence, the possibility of blue ball be drawn at random is 1/4.

That's all

Answer 2

content contains 4 blue 5 red and 7 green balls the probability will be

probability upon number of chance occur

the ratio of Blue balls is is 1 ratio 4