Quantitative Aptitude - Arithmetic Ability Questions

If there are four lines in a plane, then what cannot be the number of points of intersection of these lines?

The salary of a person is reduced by 20% . To restore the previous salary, his present salary is to be increased by

­ What is the equation of the line if its slope is 3/4 and y­intercept is 5?

A ladder 13 m long reaches a window which is 12 m above the ground on side of a street. Keeping its foot at the same point, the ladder is turned to the other side of the street to each a window 5m high, then the width of the street is :

The rate of simple interest for which a sum of money becomes 5 times in 8 years is

In the following question, select the odd word pair from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

What is the simplified value of (sec4 A – tan2 A) – (tan4 A + sec2 A)?