Quantitative Aptitude - Arithmetic Ability Questions

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

When a number is increased by 24, it becomes 110% of itself. What is the number?

If cot A = n/(n + 1) and cot B = 1/(2n + 1), then what is the value of cot (A + B)?

In ∆UVW measure of angle V is 900. If cosecU = 13/12, and UV = 2.5 cm, then what is the length (in cm) of side VW?

Find the radius of the circle if the area of its sector is 30.8 sq cm whose corresponding central angle is 72°?

If 4x - 5(2x - 1) > 2x + 3 > 2 - 3x; then x can take which of the following values?

Average age of a team having 12 players is 23 years. If the age of the coach is also included, then the average age increases by 2 years. What is the age (inyears) of the coach?

The ratio of present ages of L and N is 7 : 5. If the age of N after seven years will be 32 years, then what is the present age (in years) of L?