Question

A flower basket contains 3 white, 4 red and 5 yellow roses.
What is the minimum number of roses that must be drawn f rom the basket so that you
definitely draw a red rose ?
A.9
A.9
B.8
B.8
C.10
C.10
D.5
D.5
Answer: A.9
A.9

Answer 1

Answer:

answer is:9

Step-by-step explanation:

add all the number of roses and subtract 3(red roses) from the total

Answer 2

Step-by-step explanation:

solution--->

Given:-

• 3 white rose
• 4 red rose
• 5 yellow rose

there are 12 roses total

S = { W,W,W,R,R,R,R,Y,Y,Y,Y,Y}

n (s)= 12

now Probability of getting only red rose

out come is 4

A ={R,R,R,R}

n (A) = 4

$p = \frac{4}{12} \\ \\ \: \: \: \: \: = \frac{1}{3}$