Quantitative Aptitude - Arithmetic Ability Questions

If (x - 13)2 + (y - 4)2 = 0, then the value of y + xy - x ?

The simplification value of 735+2-552+7+227+5 is

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

Working together P, Q and R reap a field in 6 days. If P can do it alone in 10 days and Q in 24 days, in how many days will R alone be able to reap the field?

ABCD is a quadrilateral in which BD and AC are diagonals then

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

A thief is stopped by a policeman from a distance of 200 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed
of the thief as 8 km/hr and that of police man as 10 km/hr. How far the thief would have run, before he is over ­taken?

ΔPQR is right angled at Q. If cotP = 5/12, then what is the value of tanR ?