MEDIUM
JKCET
IMPORTANT
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Three friends are trying to solve a puzzle. The chances of solving the puzzle by each of them individually are 15,12 and 13 respectively. What is the probability that the puzzle will NOT be solved?

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Important Questions on Probability

MEDIUM
JKCET
IMPORTANT
In a school, 40% of the students play both cricket and volleyball. 60% of the students play cricket. Each student of the school plays at least one game from cricket and volleyball. A student is selected at random. What is the probability that the student plays volleyball if it is found that the student plays cricket?
MEDIUM
JKCET
IMPORTANT
On a biased dice, numbers from 1 to 6 are written on its six faces. The probability that a face will appear on throwing the dice is directly proportional to number written on that face. What is the probability that a face on which a multiple of 3 is written will appear both times when this dice is thrown twice?
HARD
JKCET
IMPORTANT
4 consecutive years are taken such that exactly one of them is a leap year. One of these four years is randomly chosen. What is the probability that it will have 53 Wednesdays?
EASY
JKCET
IMPORTANT
The probability that Madhu will pass in her terminal exam is 1/3. The probability that Meena will fail in same exam is 3/4. What is the probability that exactly one of them passes in this exam?
MEDIUM
JKCET
IMPORTANT
Two fair coins are thrown together. Only if heads appear on both coins, a fair dice is thrown on which natural numbers from 1 to 6 are written on the faces. What is the probability that face on which 2 is written will appear on the dice?
HARD
JKCET
IMPORTANT
P speaks truth in 70% cases and Q speaks in 80% of the cases. In what percentage of cases are they likely to contradict each other in stating the same fact?
HARD
JKCET
IMPORTANT
If P(A)=14, P(B)=15 and P(AB)=18, then PACBC=
HARD
JKCET
IMPORTANT
A fair coin with two sides 'head' and 'tail' is tossed 6 times. What is the probability that head turns up at least 4 times?