Quantitative Aptitude - Arithmetic Ability Questions

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

A, B and C can finish a job working alone in 20, 30 and 60 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to finish the remaining part of the job?

A bus is running at a speed of 90 kmph. What distance will it cover in 20 seconds?

If 5 ­ 3x < 4 ­ x and 5(2 ­ x) > 2 ­ 2x, then x can take which of the following values?

Find co-ordinates of the mid point of the segment joining points C (3,-5) and D (-7,3).

In an army selection process, the ratio of selected to unselected was 3:1. If 60 less had applied and 30 less selected, the ratio of selected to unselected would have been 5:1. How many candidates had applied for the process?

The value of x for which the expressions 15x + 4 and 13x - 2 become equal is ______

What is the value of x4+y4 when the value of x3+y3=8 and x+y=2 ?