Quantitative Aptitude - Arithmetic Ability Questions

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

In triangle ABC, O is the orthocenter and angle BOC is 120 deg. Calculate angle BAC.

Atul and Binay together complete a piece of work in 5 days. If Binay alone can complete the same work in 8 days, how many days Atul take to complete the same work alone?

A solid sphere and a solid hemisphere have the same total surface area. The ratio of their volumes is (Take, π=22/7)

The product of two numbers is 40. One of them is 2.50. What is the other number?

What will be the maximum power of 8 that exactly divides 25!?

Factorise x2 + 3x -­ 18

Find the unit place digit in 192102 + 193103