Two dice are thrown simultaneously. What is the probability of obtaining sum of the numbers less than $11$
$\frac{{17}}{{18}}$
$\frac{1}{{12}}$
$\frac{{11}}{{12}}$
None of these
A number is chosen at random from first ten natural numbers. The probability that number is odd and perfect square is
One card is drawn from a well shuffled deck of $52$ cards. If each outcome is equally likely, calculate the probability that the card will be not a diamond.
A bag contains $30$ balls numbered from $1$ to $30$, one ball is drawn randomly. The probability that number on the ball is multiple of $5$ or $7$ is
The probability of getting a total of $5$ or $6$ in a single throw of $2$ dice is
One card is drawn from each of two ordinary packs of $52$ cards. The probability that at least one of them is an ace of heart, is