Question
The sum of the ages of Arun and Bharti is 24 years such
that Arun is older. If the age of Arun and Bharti is doubled, the difference is 8 years. What is the age of Arun, in years?Solution
The correct answer is D
The names of 8 students from section A, 9 students from section B and 10 students from section C were selected. The age of all the 27 students was diffe...
- A 6-digit number is formed using the digits 1, 2, 3, 4, 5 and 6. If each digit can be used only once, then find the probability that the number formed will...
A box contains 12 black, 8 red and 10 green marbles. Two marbles are randomly selected from the box, what is the probability that a black and a green ma...
A bag contains 4 red, 5 blue and 6 green balls. Two balls are drawn at random without replacement. What is the probability that the two balls are of dif...
24 defective pens are accidentally mixed with 120 good ones. It is not possible to just look at a pen and tell whether or not it is defective. On...
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
A bag contains 3 black and 9 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A fair coin is tossed 6 times. What is the probability of getting exactly either two or three heads?
In a lottery, there are 6 prizes and 30 blanks. A lottery is drawn at random. What is the probability of getting a prize?
...- There are 7 blue and 3 white balls in a basket. Two balls are drawn randomly. Find the probability that both the balls are white.