Quantitative Aptitude - Arithmetic Ability Questions

In an army selection process, the ratio of selected to unselected candidates was 4:1. If 90 less had applied and 20 less selected, the ratio of selected to unselected would have been 5:1. How many candidates had applied for the process?

At what point does the line 3x + 2y = 12 cuts the Y-axis?

The sum of a fraction and 4 times its reciprocal is 13/3. What is the fraction?

Marked price of an item is Rs 200. On purchase of 1 item discount is 22%, on purchase of 4 items discount is 33%. Rabia buys 5 items, what is the effective discount?

Circum center of ΔABC is O. If ∡BAC = 75 and ∡BCA = 80 degrees,

then what is the value of ∡OAC(in deg)?

20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?

If x = 2+32-3, then what is the value of x2+x-9 ?

Find the common factor of (3757+4357) and (3737+4337) ?