Quantitative Aptitude - Arithmetic Ability Questions

What is the slope of the line perpendicular to the line passing through the points (­6,3) and (2,7)?

Find the least number that must be subtracted from 98534, to get a number exactly divisible by 824.

The product of two numbers is 0.324. One of the numbers is 1.2. What is the other number?

What are the co-ordinates of the centroid of a triangle, whose vertices are A(2 , 5), B(-4 , 0) and C(5 , 4)?

What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?

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

In the following question, select the odd letter/letters from the given alternatives.

A cylindrical vessel of height 9 cm and radius 7 cm is completely filled with sand. When this sand is poured out it forms a right circular cone of radius 10 cm what will be the height of this cone?