Quantitative Aptitude - Arithmetic Ability Questions

A solid cube is cut into 27 identical cubes. What is the percentage increase in the total surface area?

Two numbers are 10% and 20% lesser than a third number respectively. By how much percent is the second number should be enhanced to make it equal to the first number?

If the perimeter of a semi-circle is 36 cm, then find its radius (in cm).

What is the third proportional to 10 and 25?

A bank offers 20% compound interest per half year. A customer deposits Rs 6000 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is

What are the co­ordinates of the centroid of a triangle, whose vertices are A(­2,­5), B(4,­4) and C(7,3)?

If a cone is divided into two parts by drawing a plane through the midpoints of its axis, then the ratio of the volume of the 2 parts of the cone is