Quantitative Aptitude - Arithmetic Ability Questions

A solid right circular cone of radius 4 cm and height 7 cm is put inside a cylindrical vessel of radius 5 cm and height 8 cm. How much water in cubic cm will be required to fill the cylindrical vessel completely?

If secA/√(sec2A ­- 1) = x, then value of x is

If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

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 tank can be filled in 30 minutes. There is a leakage which can empty the tank in 90 minutes. Therefore, the tank will be filled in

The distance between two cities X and Y is 270 km. First train starts from X at 7:00 a.m. and travels towards Y at 40 km/hr. Second train starts from Y at 8:30 a.m. and travels towards X at 30 km/hr. At what time (in a.m.) will both the trains meet?

In the following question, select the missing number from the given series.
 
1912, 2012, 2133, 2277, 2446, ?

Which of the following is correct?