Quantitative Aptitude - Arithmetic Ability Questions

If 2pp2-2p+1 = 14, then the value of (p + 1/p) will be

The mean of marks secured by 45 students in division A of class X is 56, 40 students of division B is 52 and that of 40 students of division C is 50. Find the mean of marks of the students of three divisions of Class X.

If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is

What should be added to 3(x­ - 2y) to obtain 2(3x + y) -­ 5(2x + 3)?

Select the odd letters from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

If 2x- ­2(x ­- 2) < 5 ­- x > ­-2x + 2; then the value of x is