Quantitative Aptitude - Arithmetic Ability Questions

If a = 1/a-5, then the value of a + 1/a = ?

What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

What is the value of tan 7π/6?

Which of the following numbers will have an irrational square root?

A man travelled a distance of 99 km in 9 hours. He travelled partly on foot @ 9 km/hr and partly on bicycle @ 18 km/hr. What is distance (in kms) travelled on foot?

Manish, Mukesh and Sachin are Accountants. Mukesh can filea return in 5 hours and Sachin in 4 hours alone. All three together can do it in 2 hours. In what time (in hrs) will Manish do the work?

In the given figure, ABC is an equilateral triangle. Two circles of radius 4 cm and 12 cm are inscribed in the triangle. What is the side (in cm) of an equilateral triangle ?

What would be the smaller of the two angles formed by the hour hand and the minute hand at 4:52 p.m?