Quantitative Aptitude - Arithmetic Ability Questions

Vikash purchased 5 bananas for Rs.4 and sold 4 bananas for Rs.5. Calculate his % profit?

The fraction from the ones listed below that will NOT lead to a recurring decimal is

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 16:9 and PQ = 3.6 cm, then what is the length(in cm) of XY?

Find the curved surface area (in cm2) of a right circular cylinder of diameter 28 cm and height 12 cm.

What will be the value of xy, if x2+y2 = 45 and x-y=5 ?

If sinθ x cosθ = 1⁄2 . The value of sinθ ­- cosθ is where 0°< θ< 90°

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

Reflection of the point (­1,4) in the x­axis is