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QJEE MAIN 2025
Let $\mathrm{A}=\left[\mathrm{a}_{i j}\right]$ be a $2 \times 2$ matrix such that $\mathrm{a}_{i j} \in\{0,1\}$ for all $i$ and $j$. Let the random variable X denote...
JEE MainMathematicsMedium
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QJEE MAIN 2025
Let $S$ be the set of all the words that can be formed by arranging all the letters of the word GARDEN. From the set...
JEE MainMathematicsEasy
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QJEE MAIN 2025
A box contains 10 pens of which 3 are defective. A sample of 2 pens is drawn at random and let X denote the number...
JEE MainMathematicsMedium
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QJEE MAIN 2025
The probability, of forming a 12 persons committee from 4 engineers, 2 doctors and 10 professors containing at least 3 engineers and at least 1...
JEE MainMathematicsMedium
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QJEE MAIN 2025
All five letter words are made using all the letters A, B, C, D, E and arranged as in an English dictionary with serial numbers....
JEE MainMathematicsHard
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QJEE MAIN 2025
Three distinct numbers are selected randomly from the set $\{ 1,2,3, \ldots ,40\}$. If the probability, that the selected numbers are in an increasing G.P.,...
JEE MainMathematicsHard
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QJEE MAIN 2025
Let $\mathrm{A}=\left[a_{i j}\right]$ be a square matrix of order 2 with entries either 0 or 1 . Let E be the event that A is...
JEE MainMathematicsEasy
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QJEE MAIN 2025
A board has 16 square as shown in the figures : Out of these 16 squares, two squares are chosen at random. The probability that...
JEE MainMathematicsEasy
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QJEE MAIN 2025
Two number ${k_1}$ and ${k_2}$ are randomly chosen from the set of natural numbers. Then, the probability that the value of $...
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