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?

G is the centroid of the equilateral triangle ABC, if AB = 9cm then AG is equal to

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

A car takes 5 hours to cover 100 kms distance at a particular speed whereas another car takes 3 hours to reach a particular distance at the same speed. Find the distance.

The average of 7 numbers is 30. If the average of first three numbers is 25 and that of last three numbers is 35, then what is the fourth number?

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 :

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)?