Quantitative Aptitude - Arithmetic Ability Questions

If cos 21° = x/y, then cosec 21° -­ cos 69° is equal to

If the length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively, then find its perimeter

If 4r = h + r2+h2 then r: h = ? (r not equal to 0)

BE and CF are two altitudes of a triangle ABC. If AB = 6 cm , AC = 5 cm and CF = 4 cm , then the length of BE is

A and B together can do a piece of work in 10 days. If A can do the work in 15 days, find in how many days that B alone can do the same work. Given below are the steps involved in solving the above problem. Arrange them in sequential order.

A) One day's work of B is 1/10 - 1/15

B) One day's work of A and B is 1/10 and One day's work of A is 1/15

C) B alone can do the work in 30 days

D) One day's work of B is 1/30

If x + 1x = 3, then x18 + x12 + x6 + 1 value is

The ratio of two numbers is 2 : 3. If the sum of both the numbers is 75, then what is the larger number among both the numbers?

In the following question, select the odd letters from the given alternatives.