Quantitative Aptitude - Arithmetic Ability Questions

Sum of four times a fraction and 6 times its reciprocal is 11. What is the fraction?

Two men standing on same side of a pillar 75 metre high, observe the angles of elevation of the top of the pillar to be 30° and 60° respectively the distance between two men is

What number should be added to each of the numbers 55, 100, 65 and 116, so that the resulting numbers are in continued proportion?

If x + (1/x) = 2, then what is the value of x21 + (1/x1331)?

If the selling price is Rs 855 after getting a discount of 5%, what was the marked price?

If 10x/3 + 5/2(2 - x/3) = 7/2, then the value of x is?

A can do 1/3rd of a job in 3 days and B can do half of the job in 9 days. If they work on it together, then in how many days can they finish half of the job?

If a3+ b3 = 19 and a + b = 1, then what is the value of ab?