Quantitative Aptitude - Arithmetic Ability Questions

The rate of working of A and B are in the ratio of 2:3. The number of days taken by them to finish the work is in the ratio:

How many three digit numbers are there in which all the digits are odd?

The largest 5 digit number exactly divisible by 84 is:

The measure of the four successive angles of a quadrilateral are in the ratio 7 : 11 : 7 : 11. The quadrilateral is a ______.

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

A boat is sailing towards a lighthouse of height 20√3 m at a certain speed. The angle of elevation of the top of the lighthouse changes from 30° to 60° in 10 seconds. What is the time taken (in seconds) by the boat to reach the lighthouse from its initial position?

What is the reflection of the point (-0.5, 6) in the x-axis?