Quantitative Aptitude - Arithmetic Ability Questions

Which of the following triangle is formed when the triangle has all the three medians of equal length?0

For real a, b and c if a2 + b2 + c2 = ab + bc + ca, then find the value of a+b+c2.

From the top of a building, the angles of elevation and depression of top and bottom of a tower are 60 deg and 30 deg respectively. If the height of the building is 5m, then the height of the tower is

 Find the volume (in cm3) of a hemisphere of diameter 42 cm.

The volume of a right circular cone, with a base radius the same as its altitude, and the volume of a hemisphere are equal. The ratio of the radii of the cone to the hemisphere is

The square root of which of the following numbers is irrational?

Which is the correct ascending order of the given numbers?

Which of the following pairs is NOT a pair of twin primes?