Quantitative Aptitude - Arithmetic Ability Questions

The list price of an article is Rs. 900. It is available at two successive discounts of 20% and 10% . The selling price of the article is:

Two students appeared for an examination. One of them secured 16 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are

√(1 + tan2A)/tanA is equal to

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

In ΔABC, AC = BC and ∠ABC = 50°, the side BC is produced to D so that BC = CD then the value of ∠BAD is

Select the odd letters from the given alternatives.

A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

A and B can do a piece of work in 18 days, B and C in 24 days, A and C in 36 days. Working together they can do the work in