Quantitative Aptitude - Arithmetic Ability Questions

Which of the following is not a quadratic equation?

If a = 5, b = 4, c = 8 then find the value of (a3 + b3 + c3 - 3abc)/(ab + bc + ca - a2 - b2 - c2)

In a one day match of 50 overs in an innings the Team A had a run rate of 6.1 runs per over. Team B is playing and 10 overs are left and the required run rate to tie the match is 6.5 per over. What is Team B's score now?

The sum of 15 observations of a data is (434 + x). If the mean of the data is x, then the value of x is

Diameter of wheel of a cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km/hr. How many revolutions will the wheel make during the journey?

If the difference between the measures of the two smaller angles of a right angled triangle is 8°, then the smallest angle is

In a camp 180 students had ration for 20 days. How many students should leave the camp if the ration should last for 25 days?

What is the simplified value of (cos A + sin A)(cot A + tan A)?