Quantitative Aptitude - Arithmetic Ability Questions

Reciprocal of 235?

The measures of the four angles of a quadrilateral are in the ratio 1:2:3:4. What is the measure of the biggest angle?

If Cos θ = 5/13, then Cosec θ = ?

If Cos θ = 35/37 , then what is the value of Cot θ?

If (333 + 333 + 333) (233 + 233) = 6x, then what is the value of x?

The average of 100 observations was calculated as 35.It was found later, that one of the observation was misread as 83 instead of 53. The correct average is :

In a college union, there are 48 students. The ratio of the number of boys to the number of girls is 5:3. The number of girls to be added in the union, so that the number of boys to girls in 6:5 is

Some one rupee, 50 paisa and 25 paisa coins make up rupees 93.75 and their numbers are in the proportion of 3 : 4 : 5. Find the number of each type of coins?