Quantitative Aptitude - Arithmetic Ability Questions

Suppose that the medians BD, CE and AF of a triangle ABC meet at G. Then AG: GF is

The total surface area of a hemisphere is 166.32 sq cm, find its curved surface area?

The co-ordinates of the centroid of a triangle ABC are (2 , 2). What are the co-ordinates of vertex C if co-ordinates of A and B are (7 , -1) and (1 , 2) respectively?

A table is sold at a discount of 45%. If the marked price of the table is Rs 10800, then what is the selling price (in Rs) of the table?

If in-radius of an equilateral triangle is 3 cm. Calculate the perimeter (in m) of the equilateral triangle.

If A + B = 90 deg and Cos B = 1/3, then the value of Sin A is

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

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?