NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
VISIT NOW

WB JEE

Probability

Mathematics

Previous Years Questions

MCQ (Single Correct Answer)

More
A determinant is chosen at random from the set of all determinants of order 2 with elements 0 or 1 only. The probability...
WB JEE 2022
A, B, C are mutually exclusive events such that $$P(A) = {{3x + 1} \over 3}$$, $$P(B) = {{1 - x} \over 4}$$ and $$P(C) =...
WB JEE 2022
Four persons A, B, C and D throw and unbiased die, turn by turn, in succession till one gets an even number and win the ...
WB JEE 2021
A rifleman is firing at a distant target and has only 10% chance of hitting it. The least number of rounds he must fire ...
WB JEE 2020
Four persons A, B, C and D throw an unbiased die, turn by turn, in succession till one gets an even number and win the g...
WB JEE 2020
A coin is tossed again and again. If tail appears on first three tosses, then the chance that head appears on fourth tos...
WB JEE 2011
4 boys and 2 girls occupy seats in a row at random. Then the probability that the two girls occupy seats side by side is...
WB JEE 2011
The probability that at least one of A and B occurs is 0.6. If A and B occur simultaneously with probability 0.3, then P...
WB JEE 2010
Two dice are tossed once. The probability of getting an even number at the first die or a a total of 8 is
WB JEE 2010
Three numbers are chosen at random from 1 to 20. The probability that they are consecutive is
WB JEE 2009
A and B are two independent events such that P(A $$\cup$$ B') = 0.8 and P(A) = 0.3. Then P(B) is
WB JEE 2009
A person draws out two balls successively from a bag containing 6 red and 4 white balls. The probability that at least o...
WB JEE 2008

MCQ (More than One Correct Answer)

More
A and B are independent events. The probability that both A and B occur is $${1 \over {20}}$$ and the probability that n...
WB JEE 2020

Subjective

More
If an unbiased coin is tossed n times. Find the probability that head appears an odd number of times.
WB JEE 2008

Joint Entrance Examination

JEE Main JEE Advanced WB JEE

Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

Medical

NEET

CBSE

Class 12