Quantitative Aptitude - Arithmetic Ability Questions

In an acute-angled triangle ABC is Sin(B+A+C)=32 and tan(C+A-B)=1, then C is equal to

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

Two numbers are 50% and 90% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

In the following question, select the odd number group from the given alternatives.

A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is

Find the HCF & LCM of 16, 24.

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:3 and area of ΔADE is 4 sq cm, what is the area (in sq cm) of quadrilateral BDEC.

The point at which the perpendicular bisectors of the sides of a triangle intersect is known as _____________________