Quantitative Aptitude - Arithmetic Ability Questions

What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?

On a ground , there is a vertical tower with a flagpole on its top . At a point 9 m away from the foot of the tower , the angles of elevation of the top and bottom of the flagpole are 60° and 30° respectively . The height of the flagpole is

In the last financial year, a car company sold 41,800 cars . In this year, the target is to sell 51,300 cars . By what percent must the sale be increased ?

If α and β are the roots of equation x2 – x + 1 = 0, then which equation will have roots α3 and β3?

In the following question, select the odd word pair from the given alternatives.

Find two numbers such that their mean proportion is 12 and third proportion is 768.

Find the range of the data : 11,13, 9, 17, 13, 19, 10, 11

A 220 metres long train takes 33 seconds to cross a 440 metres long bridge. How much time (in seconds) will the train take to cross a 350 metres long bridge?