Quantitative Aptitude - Arithmetic Ability Questions

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

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?

Select the odd letters from the given alternatives.

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?

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

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