Quantitative Aptitude - Arithmetic Ability Questions

To cover a distance of 144 km in 3.2 hours what should be the average speed of the car in meters/second?

What is the least number that should be added to the product 11 x 12 x 13 x 14 to make it a perfect square?

A cricketer, whose bowling average was 12.4 runs/wicket takes 5 wickets for 22 runs in a match, thereby decreases his average by 0.4. The number of wickets, taken by him before this match was:

The average salary of all workers in a workshop is Rs.12000. The average salary of 7 technicians is Rs.15000 and the average salary of the rest is Rs.9000. The total number of workers in the workshop is

In the given questions, two equations numbered I and II are given. Solve both the equation and mark the appropriate answer.

$$\begin{gathered} I. x2–5x –24 = 0 \\ II. 2y2+ 19y + 35 = 0 \end{gathered}$$

Two students appeared for an examination. One of them secured 16 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are

If (1 - sinA)/(1 + sinA) = x, then x is

What is the area (in sq cm) of a rectangle if its diagonal is 26 cm and one of its sides is 10 cm?