Who is the first women boxer to be honoured with the Rajiv Gandhi Khel Ratna Award?
Which is the only Test playing nation that India has never beaten in T20 International ?
The Doctrine of Lapse was one of the causes for which rebellion ?
Where did Sunita Williams display the Indian flag on Independence day in 2012 ?
At Rio 2016, who made the record for the fastest goal scored in football in Olympics by scoring a goal in 14 seconds?
Which of these can be estimated from the colour of the nose of a lion?
Which of the following tools is part of the name of an Olympic sporting events ?
Which of these Indian supreme court judges also served in the International Court of Justice?
Which of these companies is a major manufacturer of high speed passenger trains?
Which of these Indian Para-athletes won the gold medal in high jump at the Rio Paralympic Games ?
Ticket numbered from 1 to 20 are mixed up and a ticket is drawn at random.
What is the probability that the ticket drawn has a number which is a multiple of 3 or 7 ?
multiples of 3
3 6 9 12 15 18
multiples of 7
all possible outcomes 6+2=8
From 1 to 20 numbers divisible by 3 are 6 by 7 are 2.
So, favourable outcomes are 8 out of a possible 20 outcomes
Probability = favourable outcomes / possible outcomes
= 8/20 = 2/5 = 0.4
p(E) = 8c1 / 20c1 = 8/20.....
multiples of 3= 3 , 6 , 9 , 12 ,15 , 18..
multiples of 7 = 7 , 14,,,,,
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3.
A bag contains 5 white, 4 red and 3 black balls. A ball is drawn at random from the bag, what is the probability that it is not black?
A bag contain 5 blue and 4 black balls. Three balls are drawn at random. What is the probability that 2 are blue and 1 is black.
Forgot Your Password?
2017 © Queryhome