Straight Lines ...

Function f(x)=$\left| {x - 2} \right| - 2\left| {x - 4} \right|\,is$ discontinous at:

The total number of different combinations of one
or more letters which can be made from the letter of the word MISSISSIPPI is,

Number of arrangements of the letter $HOLLYWOOD$ in which all $Os$ are separated.

How many committee of five persons with a chairperson can be selected from $12$ persons.

The English alphabet has 5 vowels and 21 consonants. How many words with two different vowels and 2 different consonants can be formed from the alphabet ?

Number of identical terms in the sequence $2, 5, 8, 11,$___ upto $100$ terms and $3, 5, 7, 9, 11$____ upto $100$ terms are

$67,84,95,.,133,158$

How many $3$-digit even numbers can be formed from the digits $1, 2, 3, 4, 5, 6$ if the digits can be repeated?

Find the value of ?. 

Find the area of the triangle formed by joining the mid points of the sides of the triangle whose vertices are $(0.-1), (2, 1) and (0, 3)$