Question

A basket contains 5 red roses and some white roses. If the probability of drawing a white Rose is double to that of red roses . Find the number of white Rose in the basket.

Answer 1

Answer:

Step-by-step explanation:

Let the total no. of roses in the basket be x

So probability of getting red roses be

                               =    5/x

So probability of getting white roses be

                             =  (x - 5)/x  =  2(5/x) [∵GIven]

We know sum of all probabilities is 1

So

= 5/x + 2(5/x)  = 1

= (5+10)/x = 1

=  x = 15

so no of white roses = 15-5

                                  = 10

Answer 2

Answer:

=10

Step-by-step explanation:

Let the total no. of roses in the basket be x

So probability of getting red roses be

                              =    5/x

So probability of getting white roses be

                            =  (x - 5)/x  =  2(5/x) [∵GIven]

We know sum of all probabilities is 1

So

= 5/x + 2(5/x)  = 1

= (5+10)/x = 1

=  x = 15

so no of white roses = 15-5

                                 = 10