Quantitative Aptitude - Arithmetic Ability Questions

Two students appeared for an examination. One of them secured 26 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are

A car can cover 350 km in 4 hrs. If its speed is decreased by 12.5 kmph. How much time does the car take to cover a distance of 450 kms.

What percentage of 1 day is 18 minutes?

What is the value of [tan (90 – A) + cot (90 – A)]2/[2 sec2(90 – 2A)]?

If sec2A cosec2A = x, then x is

Which of the following value of 'x' satisfies the equation 814x+4 = 2432x+8?

If  a+1/a = 3, then a3+1a3?

In an army selection process, the ratio of selected to unselected was 3:1. If 60 less had applied and 30 less selected, the ratio of selected to unselected would have been 5:1. How many candidates had applied for the process?