Question
A bag has 5 red, 4 blue, 3 green balls. Two balls are
drawn without replacement. Find probability that both are of the same color.Solution
ATQ, Total ways = C(12,2) = 66 Favourable = C(5,2)+C(4,2)+C(3,2) = 10+6+3 = 19 Probability = 19/66 Answer: 19/66
What is the shortest distance between Sanju and Ankit?
Vipin home is 30 m to the left of a temple, which is 40 m to the north of a church. One day, Vipin starts from his home and takes the road which is par...
S is in which direction with respect to V?
In each of the following questions, a letter-number series is given with one or more terms missing as shown by (?). Choose the missing term out of the ...
What is the distance between point Z and point V ?
- Ranu walks 20 m north, then she turns left and walks 11m. Again she turns left and walks 32m. Finally she turns left and walks 11m. Find the distance betwe...
Four of the following five are alike in a certain way and thus form a group. Which of the following does not belong to the group?
One day, Neelam leaves her office and walks 30m towards east. She then turned right and walks 30m, and then she again turned right and walks 15m. From t...
What is the direction of R with respect to Q?
What is the position of R with respect to T?