Quantitative Aptitude - Arithmetic Ability Questions

Which of the following is in ascending order?

If a - b = 5 and a2 + b2 = 97, ab = ?

Simplify (2/7 + 3/5) / (2/5 + 2/7)

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

If O is the centroid and AD, BE and CF are the three medians of Δ ABC with an area of 96 cm2 then the area of Δ BOD in cm2 is

In a triangle the length of the side opposite the right angle is 6 cm, what is the length of the side opposite to the angle which measures 30°?

In a triangle the length of the side opposite the angle which measures 60° is 6√3 cm. What is the length of the side opposite to the angle which measures 90°? 

The point of intersection of all the angle bisector of a triangle is ______ of the triangle.