Quantitative Aptitude - Arithmetic Ability Questions

The triangle in which the orthocenter, circumcentre, Incenter and the centroid coincide each other at a point is known as _____________.

What is the slope of the line 2x + 3y = 12?

The number of sides of a regular polygon whose exterior angles are each 72 deg is

 What is the value of (sin60° - 2/√3) ?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given options.

A 25m long ladder is rested on a wall. The foot of the ladder is 7m away from the wall. If the end of the ladder (resting on the wall) slides down 4m, then how far will its foot move away?

If Tan A = 15/8 and Tan B = 7/24, then Tan (A - B) = ?

O is the center of the circle and two tangents are drawn from a point P to this circle at points A and B. If ∠AOP = 50°, then what is the value (in degrees) of ∠APB?