Total balls = 5 + 6 + 9 = 20 balls. The number of ways to select 2 balls out of 20 = C(20, 2) = (20 × 19) / 2 = 190. Number of ways to select 2 red balls = C(5, 2) = (5 × 4) / 2 = 10. Number of ways to select 2 blue balls = C(6, 2) = (6 × 5) / 2 = 15. Number of ways to select 2 green balls = C(9, 2) = (9 × 8) / 2 = 36. Total favorable outcomes = 10 + 15 + 36 = 61. Probability = 61 / 190 = 11 / 42. Correct Option: a
Select the correct passive voice of the given sentence.
Who will investigate cases related to funding of terror groups?
Select the correct active form of the given sentence.
The books should have been placed on their proper shelves.
Select the correct active voice of the given sentence.
Are you frightened by snakes and spiders?
Let the silence be maintained.
Select the correct active form of the given sentence.
Many Indians have been brought back from foreign countries by the government.
Select the correct passive/active form of the given sentence.
people speak English in the U.S.A.
In the following question a sentence has been given in its active/passive form followed by 5 alternatives. choose the option which is the correct chang...
Select the correct passive form of the given sentence.
Your behavior annoys me greatly.
The application had been sent by her.
Choose the option in which the given sentence has been changed into passive voice
I wrote this book
