Which Indian cricketer is known as "Brown Bradman"?
Which of the following Pair are not parent and child who have both won the Nobel prize?
Who was the first women nominated member of Rajya Sabha of India?
Vishnu Purana, which of these mythological objects was not among those made by Vishwakarma from particles of surya?
Who was the first living Indian to feature on a postage stamp of India?
Which of the Indian states do not have their name originated from Sanskrit?
Who was the first Indian Prime Minister passed away in a foreign country?
What to do if we didnt complete our revision and today is our exam?
Who was the first women chief justice of any Indian State?
Which famous electric car company is named after a great inventor and scientist?
A bag has 100 balls out of which there is one green ball. 50 balls are randomly selected. What is probability that the green ball is selected.
P = 99c49/100C50 = 1/2
Explanation P = success cases/all cases All cases = 100C50 Success cases = 1 green ball and any remaining any 49 ball i.e. 99C49
So P=99c49/100C50 = (99!/(49!*50!))/(100!/(50!*50!)) = 1/49!/100/50! = 50/100 = 1/2
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 red balls and some blue balls. If the probability of drawing a blue ball from the bag is four time that of a red ball, then find the number of blue balls in the bag.
3 red, 2 white and 3 green balls are available in a bag. 2 balls are drawn one by one from the bag.
What will be the probability of one ball is white & other is green?
