Question
A boy attended 5 lab evaluations, each having a total of 100 marks. His scores were 88, 76, 92, 81, and 70. He randomly reveals one of the scores to his friend. What is the probability that he reveals a score where he got more than 80% marks?
More Probability Questions
- In a box there are 8 red, 7 blue, and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
- There are 60 balls of three different colours in a bag out of them 15 are red and 21 are blue. Find the probability of drawing a black ball (third colour) ...
- A basket contains x green apples, (x + 2) red apples and (x + 10) yellow apples. If probability of getting a red apple is 1/8 more than that of getting a g...
- A bag contains 5 red, 4 green, and 3 blue balls. What is the probability of drawing a green ball?
- A contains X green Balls, '7 Red Balls, and 5 Yellow Balls. The probability to pick Green Ball at random is 3/5. Another Bag B contains ‘6 green Balls, ‘x ...
- Determine the probability that when a hand of 7 cards is drawn from a box of 52 cards, it consists at least 3 kings?
- A piggy bank has seven 25 paise coins, five Rs. 2 coins, and thirteen Rs. 5 coins. One of the coins fell and got lost. Find the probability that the lost c...
- The probability that Dev clears the exam is (3/10) and the probability that Kriti fails is (1/6). What is the probability that both of them have the same r...
- A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 2.5 times that of drawing a white ball, find the n...
- A bag contains only red and blue balls. The probability of drawing a red ball from the bag is 3/5. If 4 more blue balls are added to the bag, the probabili...
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)