Question

A bag contains 7 white, 6 green and 9 yellow marbles .The probability of getting a yellow marbles when one marble is drawn randomly is :
1.Equal to 1/2
2.Greater than 1/2
3.Less than 1/2
4.Greater than 2/3​

Answer 1

Answer:

Total marbles= 22

So as it is given there are 9 yellow marbles.

So probability is

$\frac{ \sf \: total \: possible \: outcomes}{ \sf \: total \: outcomes} \\ \\ = \frac{9}{22}$

So the probability of getting yellow marble is greater than 2/3

$\rule{200pt}{5pt}$

Answer 2

Answer: (3) Less than 1/2

Explanation:

Probability of getting a yellow marble = Number of yellow marbles / Total number of marbles = 9/(7+6+9) = 9/22

We know

1/2 = 11/22

Thereby

9/22 < 11/22       ;(9 < 11)

⇒ 9/22 < 1/2

Hence 9/22 is less than 1/2

Hope it helped