What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
The probability that Meena fails in Biology is (1/6), and the probability that she does not fail in History is (5/6). Find the probability that she fai...
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
- Bag A contains 2 red and 6 yellow balls, while Bag B contains 3 red and 5 green balls. If one ball is drawn from bag 'A' and bag 'B', respectively, at rand...
A box contains 10 red balls, 12 green balls, and 8 blue balls. Two balls are drawn at random. What is the probability that both balls drawn are either r...
- Bag A contains 6 red and 3 green balls, while Bag B contains 5 green and 7 blue balls. If one ball is drawn from bag 'A' and bag 'B', respectively, at rand...
Two hats are picked at random, what is the probability that one is blue and one is yellow?
- A bag contains 32 balls of two different colours violet and green in the ratio of 5:3 respectively. Two balls are randomly drawn without replacement from t...
The probability of selecting a rotten egg randomly from a basket of 1200 eggs is 0.22. What is the number of rotten eggs in the basket?
- There are black and white marbles in a jar in the ratio 4:5. After 20 marbles of each type are added, the ratio becomes 6:7. Find the original number of wh...
