Quantitative Aptitude - Arithmetic Ability Questions

The reciprocal of the sum of the reciprocals of 8/7 and 5/6 is:

To cover a distance of 333 km in 2 hours by a car, what should be the average speed of the car (in meter/second)?

A gun is fired at a distance of 1.7 km from Ram and he hears the sound after 25 seconds. The speed of sound in meter per second is

Solve the following : 3/4+{3/4 + 3/4 ÷ (3/4 + 3/4)} = ?

In the following question, select the odd letter from the given alternatives.

If (x/5) + (5/x) = – 2, then what is the value of x3?

When a number is increased by 18, it becomes 106% of itself. What is the number?