Quantitative Aptitude - Arithmetic Ability Questions

A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is : 

What is the square root of (√5 + 2)/(√5 – 2)?

Read the data given below and answer the questions based on it.

In the CBSE Board exams last year, 53% passed in Biology, 61% percent passed in English, 60% in Social studies, 24% in Biology and English, 35% in English and social studies, 27% in Biology and social studies and 5% in none.

What is the ratio of percentage of students who passed in Biology and Social Studies but not English in relation to the percentage of students who passed in Social Studies and English but not Biology?

Mark the odd man out in the given number series

24.3, 23.1, 20.7, 17.1, 12.4

If (x + 1x) = 2, then find the value of (x3 + 1x3) ÷ (x18 + 1x18)

What is the value of 88% of 1125 + 20% of 425?

Solve the following.

-4 - (-7 - 12 / 4) = ?

The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is :