The probability of getting a sum of $9$ when two dice are thrown is

$A$ box contains $100$ tickets numbered $1$ to $100$. $A$ ticket is drawn at random from the box. Then the probability that the number on the ticket is a perfect square is

If the roots of each of the equations $2x^2+x-1=0$, $3x^2-10x+3=0$, and $6x^2+11x-2=0$ correspond to probabilities of three events of a random experiment, then those events are

What is the probability that a randomly selected leap year has $53$ Sundays or $53$ Mondays? Express your answer as the numerator of the fraction (in $/7$).

$A$ number $n$ is chosen at random from $\{1, 2, 3, 4, \ldots, 1000\}$. The probability that $n$ is a number that leaves remainder $1$ when divided by $7$ is:

Two coins (a one rupee coin and a two rupee coin) are tossed once. Find the sample space.