Quantitative Aptitude - Arithmetic Ability Questions

A sum fetched a total simple interest of Rs. 8100 at the rate of 6% per year in 9 years. What is the sum?

A can do a work in 36 days and B in 12 days. If they work on it together, then in how many days will they be able to do the work?

The labourers A, B, C were given a contract of Rs. 750 for doing a certain piece of work. All the three together can finish the work in 8 days. A and C together can do it in 12 day, while A and B together can do it in 13 1/3 days. The money will be divided in the ratio

The ratio of present ages of Rasika and Shami is 7:5. After 17 years the ratio of their ages will be 12:11. What is Rasika's present age?

If the numbers  93, 204, 256 are arranged in ascending order, then the right arrangement is 

AB is a diameter of a circle. C is a point on the tangent drawn at A . If AB = 8 cm and AC = 6 cm , then the length of BC is

The value of 2.33+0.0272.33-0.69+0.09

If x2+1x2 = 2, then the value of x - 1x is