Prakhar has six biased coins with him; whenever he tosses any four coins, the probability of him getting at least one head and at least one tail is equal to 1. How many coins with Prakhar have only either heads or tails on both sides?
correct answer:-5
The probability that it will rain on Monday is 0.3. The probability that Ramya brings an umbrella on monday is 0.6.
What is the probability that Ramya does not bring an umbrella, given that it rains on Monday?
correct answer:-1
Find the number of ways of distributing five identical chocolates and six identical cookies among three children so that each child gets at least one cookie.
correct answer:-2
The faces of a numbered die are to be painted by 6 distinct colours: Red, blue, green, black, indigo, and violet. In how many ways can the faces be painted such that the red, green and blue faces share a corner of the cube?
correct answer:-5
Out of a pack of 52 cards one is lost, from the remainder of the pack , two cards are drawn and are found to be spades .Find the chance that the missing card is a spade ?
correct answer:-2
A bag contains 5 red, 4 green and 3 black balls. Three balls are drawn out from it at random. Find the probability of drawing exactly 2 red balls
correct answer:-5
DIRECTION for the question: Solve the following question and mark the best possible option.
Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is
correct answer:-4
If the integers a and b are chosen at random from 1 to 100, then the probability that a number of the form $$7^{a}+ 7^{a}$$ is divisible by 5, equal to:
correct answer:-2
