Quantitative Aptitude - Arithmetic Ability Questions

If x - y = -8 and xy = 45, then (x2 + y2) is

If 4(x + 1) - 3 < 3 - x < 2x + 5; then the value of x is

Find out the odd word/letters/number/number pair from the given alternatives.

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to

Daily local train ticket costs Rs 30 and Monthly Pass costs Rs 670.8. If I buy the Monthly Pass and travel for 26 days in a month than I save?

What least number must be added to 4131, so that the sum is completely divisible by 19?

If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0, then value of (x + y - z) is

What is the value of {[sin (x + y) – 2 sin x + sin (x – y)]/[cos (x – y) + cos (x + y) – 2 cos x]} × [(sin 10x – sin 8x)/(cos 10x + cos 8x)]?