Two balanced dice are rolled simultaneously. Then,the probability that the sum of numbers on the dice is $7$ is ............

Two balanced dice are rolled. Find the probability that the sum of numbers on two dice is greater than $8$. (in $/18$)

$A$ balanced die is rolled once. Then,the probability that the number on the die is a prime number is .........

$A$ carton contains $100$ trousers of which $73$ are good,$12$ have minor defects and $15$ have major defects. Manu rejects only those trousers which have major defects. One trouser is selected at random from the carton. Then,the probability that the selected trouser is accepted by Manu is $\ldots \ldots \ldots \ldots .$

The probability of the month of April in a non-leap year having $5$ Sundays is .... . (in $/7$)

$A$ card is drawn from a deck of $52$ cards. The event $E$ is that the card is not an ace of hearts. The number of outcomes favourable to $E$ is