Probability

JEE Main · Mathematics · 9 past questions

These are the board's own papers. 177 more board questions reprinted in the books we use in class are for signed-in students: sign in.

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Q1 2026 2 Apr Shift 1

Let $a, b, c \in \{1, 2, 3, 4\}$. If the probability that $ax^2+2\sqrt{2}\,bx+c>0$ for all $x\in\mathbf{R}$…
Q2 2026 2 Apr Shift 2

A man throws a fair coin repeatedly. He gets 10 points for each head he throws and 5 points for each tail he…
Q4 2026 4 Apr Shift 2

From a month of 31 days, 3 different dates are selected at random. If the probability that these dates are in…
Q5 2026 5 Apr Shift 1

A letter is known to have arrived by post either from KANPUR or from ANANTPUR. On the envelope just two…
Q8 2026 6 Apr Shift 2

A bag contains 6 blue and 6 green balls. Pairs of balls are drawn without replacement until the bag is empty.…