Quantitative Aptitude - Arithmetic Ability Questions

ΔDEF is right angled at E. If m∠F = 30 deg, then find the value of (sinD - 1/3).

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 alternatives.

In a rhombus _____.

The sum of the lengths of the edges of a cube is equal to four times the perimeter of a square. If a quarter of the numerical value of the volume of the cube is equal to the numerical value of the area of the square, then the length of one side of the square is

'P' is the smallest positive integer such that every positive integer N greater than 'P' can be written as a sum of two composite numbers. Then 'P' is

R is 80% more efficient than S. If S alone can make a book in 90 days, then R alone can make the book in how many days?

What is the slope of the line perpendicular to the line passing through the points (­-4,5) and (3,­-2)?

The average age of a batch of 19 members is 24 years. If the age of the faculty be included, then the average increases by 4 months. What is the age of the faculty?