Question

Ritu has 3 shirts in shades of red, 4 in yellow shades and 5 in green shades . Three shirts are picked at random . What is the probability that all of those are in red shades?

Answer 1

total number of possible outcomes= 12c3 = 220
total number of required outcomes =1
So,PRobabality=1/220

Answer 2

Answer:

Probability that all of those are in red shades is $\frac{1}{4}$

Step-by-step explanation:

Given : Ritu has 3 shirts in shades of red, 4 in yellow shades and 5 in green shades. Three shirts are picked at random.

To find : What is the probability that all of those are in red shades?

Solution :

Number of red shirts = 3

Number of yellow shirts = 4

Number of green shirts = 5

Total number of shirts = 3+4+5=12

Favorable outcome is getting all three red shades i.e. 3.

Probability that all of those are in red shades is given by,

$\text{Probability}=\frac{\text{Favorable outcomes}}{\text{Total outcomes}}$

$\text{Probability}=\frac{3}{12}$

$\text{Probability}=\frac{1}{4}$

Therefore, Probability that all of those are in red shades is $\frac{1}{4}$