Question

a jar contain 24 marbles.some are green and other are blue.if a marble is drawn at a random from the jar the probability of it being green is 2/3.find the number of blue marbles in the jar.​

Answer 1

Answer:

Step-by-step explanation:

Total number of marbles = 24

Let the total number of green marbles be x.

Then, total number of blue marbles = 24 − x

P (getting a given marble)

According to the condition given in the question,



Therefore, total number of green marbles in the jar = 16

Hence, total number of blue marbles = 24 − x= 24 − 16 =  8

Best of luck for your board exams i am also studying in 10 std

Answer 2

Answer:

6

Step-by-step explanation:

2/3 is a simplified fraction of the probability of the marble being green. The numerator is the number of green marbles while the denominator is the number of marbles in total. Since you have the number of marbles in total, you can multiply 2/3 so that the denominator is 24. 2/3 x 8 = 16/24. Therefore, there are 16 green marbles and 24-16=6 blue marbles.