Two balanced dice are rolled simultaneously. Then,the probability that the sum of numbers on the dice is $12$ is ........

One ticket is drawn at random from a bag containing tickets numbered $1$ to $40$. The probability that the selected ticket has a number which is a multiple of $5$ is

Find the probability that the month of July in any year has $5$ Sundays.

$A$ box contains $3$ blue,$2$ white,and $4$ red marbles. If a marble is drawn at random from the box,what is the probability that it will be
$(i)$ white?
$(ii)$ blue?
$(iii)$ red?

Two balanced dice are rolled. Find the probability that the sum of numbers on two dice is even.

There are $40$ students in Class $X$ of a school,of whom $25$ are girls and $15$ are boys. The class teacher has to select one student as a class representative. She writes the name of each student on a separate card,the cards being identical. Then she puts cards in a bag and stirs them thoroughly. She then draws one card from the bag. What is the probability that the name written on the card is the name of $(i)$ a girl? $(ii)$ a boy?