Quantitative Aptitude - Arithmetic Ability Questions

The length of the two parallel sides of a trapezium are 16 m and 20 m respectively. If its height is 10 m, its area in square metres is

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal sides, what is the length of the third side?

If x=aCosθCosΦ, y = aCosθSinΦ and z= aSinθ, then the value of x2+ y2 + z2 is

ΔPQR is right angled at Q. If cosP = 5/13, then what is the value of cosecR ?

What is the value of 64% of 75% of 8100?

A pentagonal prism has 15 edges. How many vertices does it have?

What is the value of 5.6x0.36+0.42x3.20.8 x 2.1 ?

The ratio of the amount of work done by (x-1) labours in (x+1) days and that done by (x+1) labours in (x+2) days is 5 : 6. Then the value of x is