Question
6 Boys and 5 Girls sat in a row randomly. What is the
probability that no 2 Girls are together?Solution
6 Boys and 5 Girls, i.e., a total of 11 people can be arranged in 11!/6!5! ways or, 462 ways.
For no 2 Girls to sit together, arrangement can be done in the following way: [B are Boys]
_ B _ B _ B _ B _ B _B_
There are 7 spaces that can be taken up by 5 Girls so that no 2 of them sit together.
Number of ways =Â 7 C 5 Â = 21.
Required probability = 21/462 = 1/22
What is the primary objective of the Grow-out Test in seed certification?
What is the function of DNA helicase during DNA replication?
Monocropping of tobacco is always discouraged as
A. it leads to the development of Pest and disease complex
B. it decreases soil fertility...
Finger-and-toe disease and abortion in animals can be due to feeding ofÂ
As per the covering material, which among the following is the type of green house?
Which variety of patchouli is known for yielding the best quality oil?
Mouthparts of insects vary to a great extend among insects of different groups depending upon their feeding habits. Type of mouth parts present in butt...
What is the interest rate of kisan Credit card after Interest Subvention Scheme
Keeping in view interest of sugarcane farmers, the Cabinet Committee on Economic Affairs has approved Fair and Remunerative Price (FRP) of sugarcane (Rs...
Honey is a sweet, viscous substance produced by honey bees from the nectar of flowers. Honey quality is tested by
Relevant for Exams:
