Quantitative Aptitude - Arithmetic Ability Questions

If x+1x=5,then the value of x1+x+x2 is

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?

Anil can do a piece of work in 14 days which Rohit can do in 21 days. They worked together for few days after which Anil left. If Rohit worked alone for 3 days, find the total number of days it took to complete the whole work.

If Mr. Raghav taught a total of 500 hours, then what is the difference in number of hours of teaching algebra and modern Maths?

Given a -­ b = 2, a3 - b3=26 then (a + b)2 is

If A and B are the roots of the equation Ax2 – A2x + AB = 0, then what is the value of A and B respectively?

The price of an article is cut by 31%, to restore to its original value, the new price must be increased by

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