Quantitative Aptitude - Arithmetic Ability Questions

The value of  (0.3)2/100=?

If x = (√2 + 1)/(√2 – 1), then what is the value of (x5 + x4 + x2 + x)/x3 ?

If x = y + 2 then x3 - y3 - z3 is

O is the circumcentre of ΔABC. If AO = 8 cm, then the length of BO is

X, Y and Z can do a piece of work in 30, 40 and 50 days respectively. All three of them began the work together but Y left 4 days before completion of the work. In how many days was the work completed?

Two cars travel from city A to city B at a speed of 36 and 54 km/hr respectively. If one car takes 3.5 hours lesser time than the other car for the journey, then the distance between City A and City B is

In ΔABC, ∠B = 70° and ∠C = 60°. The internal bisectors of the two smallest angles of ΔABC meet at O. The angle so formed at O is

If R = 97 and S = 155.2, then S is how much percentage more than R?