There are boards numbered $1$ to $50$ in a box. One board is selected at random. Find the probability that the number on the board is a multiple of $11$. (in $/25$)

An event is very unlikely to happen. Its probability is closest to

$A$ card is drawn at random from a well-shuffled pack of $52$ cards. The probability that the card drawn is not of Diamonds 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 $\ldots \ldots \ldots \ldots .$

$A$ student attends a $50$ mark test. No negative marks are given in the test. Find the probability that he scores $30$ or $35$ marks.

$A$ bag contains $24$ balls of which $x$ are red,$2x$ are white,and $3x$ are blue. $A$ ball is selected at random. What is the probability that it is:
$(i)$ not red?
$(ii)$ white?