List of top Quantitative Aptitude Questions on Probability asked in CLAT

Three fair dice are thrown simultaneously. What is the probability that the sum of numbers on their tops is at least \(6\)?
12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.
A speaks truth in 75% cases and B in 80% of the cases. In what percentage of cases are they likely to contradict each other, narrating the same incident?
A die is rolled twice. What is the probability that the sum of the numbers on the two faces is 5?
Probability of corpse being the missing man given independent events:
- Gold-plated tooth: 1 in 5000
- Left hand thumb fracture: 1 in 20000
- Right ear pierced: 1 in 100
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a perfect square number is:
Two coins are tossed simultaneously. The probability of getting at the most one head is:
A bag contains 19 red balls, 37 blue balls and 27 green balls. If a ball is picked up from this bag at random, what is the probability of picking a blue ball?