The probability of drawing a white ball from a bag containing $3$ black balls and $4$ white balls is:

$A$ dice is thrown twice. The probability of getting $4, 5$ or $6$ in the first throw and $1, 2, 3$ or $4$ in the second throw is

Six boys and six girls sit in a row randomly. What is the probability that the six girls sit together?

In a single throw of $2$ dice,what is the probability of getting a multiple of $2$ on one die and a multiple of $3$ on the other?

In a simultaneous toss of $2$ coins,find the probability of getting no tail.

$A$ can hit a target $4$ times in $5$ shots,$B$ can hit a target $3$ times in $4$ shots,and $C$ can hit a target $2$ times in $3$ shots. All three fire a shot each. What is the probability that at least two shots hit the target?