Quantitative Aptitude - Arithmetic Ability Questions

An hour-long test has 60 problems. If a student completes 30 problems in 25 minutes, then the required seconds he has taken on average for computing each of the remaining problems 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?

In triangle PQR, A is the point of intersection of all the altitudes and B is the point of intersection of all the angle bisectors of the triangle. If ∠PBR =105°, then what is the value of ∠PAR (in degrees)?

In a triangle PQR, the side QR is extended to S. ∠QPR = 72° and ∠PRS = 110°, then the value of ∠PQR is

What is the equation of the line whose y-intercept is -3 and makes an angle of 45° with the positive x-axis?

If (4x - 3) - (2x + 1) = 4, then the value of x is

If x , y, and z are real numbers such that (x - 3)2 + (y - 4)2 + (z - 5)2 = 0 then (x+y+z) is equal to