Quantitative Aptitude - Arithmetic Ability Questions

[sinA/(1 + cosA)] + [(1 + cosA)/sinA] is equal to

If p = 99, then the value of p(p2+3p+3) will be

If x2+1x2 = 98, then x3+1x3 = ?

If P = 22 + 62 + 102 + 142 + ... 942 and Q = 12 + 52 + 92 + ... 812, then what is the value of P – Q?

The ratio between the area of a square and that of a circle, when the length of a side of the square is equal to that of the diameter of the circle, is (take π=22/7)

Mohan earns a profit of 20% on selling a jean at 15% discount on printed price. The ratio of the cost price to printed price of the jean is

If X+Y=3,XY=2, find the value of X3-Y3

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.