Quantitative Aptitude - Arithmetic Ability Questions

If 4/5th of 6/7th of a number is 216, then 8/9th of that number will be

The ratio of the weights of two spheres is 8 : 27 and the ratio of weights per 1 cc of materials of two is 8 : 1 . The ratio of the radii of the spheres is

Akash starts a business with Rs 85000 and Payal joins him with Rs 102000. If the profit at the end of a year is divided in the ratio 1 : 1, then after how many months did Payal join Akash?

The volume of a spherical balloon is increased by 700%. What is the percentage increase in its surface area?

There is a three digit number. The digit at the tenth place is 3. If the place of all the digits are replaced with each other symmetrically about the tens position,then the new number obtained is 396 more than the original three digit number. The sum of the digits at unit & hundredth place is 14. Find out the original number?

ABCDEF is a regular hexagon of side 12 cm. What is the area (in cm2) of the triangle ECD?

If a + b + c = 27, then what is the value of (a – 7)3 + (b – 9)3 + (c – 11)3 – 3(a – 7)(b – 9)(c – 11)?

Sum of lengths of all edges of a cube is 84 cm, find its volume?