Quantitative Aptitude - Arithmetic Ability Questions

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

Given: 2x - 4 ≤ 2 - x/3 and 2(2x + 5) > 3x - 5, then x can take which of the following values?

If 1/√(cosec2A - 1) = x, then value of x is

If compound interest received on a certain amount in the 3rd year is Rs. 1,240, what will be the compound interest (in Rs) for the 4th year on the same amount at 9% rate of interest?

If the ratio of marked price and selling price is 11 : 10, then what is the discount percentage?

If sum of the roots of a quadratic equation is ­-7 and product of the roots is 12. Find the quadratic equation.

Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave the work due to illness and Suresh completes rest of the work in 3 days. How many days Suresh alone can take to complete the whole work ?

A can make a cupboard in 10 days and B can do it in 50 days. Along with C, they did the job in 6.25 days only. Then in how many days C alone can do the job?