Question
A bag contains balls of two colours (white and green). Number of white balls is 20 more than number of green balls. Two balls are drawn randomly from the bag. Probability that both the balls are white is (3/5). Find the number of green balls in the bag.
More Probability Questions
- A bag contains 2 black balls, 6 red balls, and 10 blue balls. Two balls are drawn at random. Find the probability that the two balls are blue.
- Roger Federer play 3 sets of a tennis match. The probability of his winning the three sets are 1/9,1/4,3/4 respectively. What is the probability that he wi...
- Bag 1: 2 red, 3 blue. Bag 2: 4 red, 1 blue. One ball from Bag 1 is put into Bag 2, then one is drawn from Bag 2. Find probability it’s red.
- In a lottery, there are 8 prizes and 20 blanks. A lottery is drawn at random. What is the probability of getting a prize?
- In a box there are 3 red, 6 blue, and 9 yellow cards. One card is picked up randomly. What is the probability that it is neither red nor yellow?
- A bag contains 8 red flowers and 11 yellow flowers. One flower is drawn at random. What is the probability that the flower drawn is a yellow flower?
- Five squares of a chessboard are chosen at random, the probability that three are of one colour and two of another is
- A five digits number is chosen at random. What is the probability that all the digits are distinct, the digits at odd places are odd and the digits are at ...
- If the letter of the word Apples is arranged at random, what is the probability that all the vowels comes together?
- The probability of selecting a rotten apple randomly from a heap of 250 apples is 0.20. What is the number of rotten apples in the heap?
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)