Quantitative Aptitude - Arithmetic Ability Questions

A shopkeeper by selling 22 Skechers shoes, earns a profit equal to the selling price of 6 Skechers shoes. His profit percentage is:

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

A canal of a village can be cleaned by 24 villagers in 12 days. The number of days in which 36 villagers can clean the canal is ?

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

A rectangular swimming pool of length 20 m and breadth 10 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 3 m at the other. How much water is needed to completely fill this pool? (Take π = 22/7)

An angle is (2/3)rd of its supplementary angle. What is the measure of the angle?

If a : b is 32 : 35 and b : c is 21 : 32, then a : c is?

If (4a-3)2=0,then the value of 64a3+12a+13 is