Quantitative Aptitude - Arithmetic Ability Questions

sin(A+B) -­ sin(A-­B) is equal to

What is the value of (cot60 + 1/√3) ?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔABC is 98 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

Total surface area of a cube is 486 sq cm, find sum of length of all its edges?

The surface area of a sphere is 1386 cm2.  Find its diameter (in cm)

Which of the following ratios can be the ratio of the sides of a right angled triangle?

The value of -3+3+87+43 is

The point where the 3 medians of a triangle meet is called