Quantitative Aptitude - Arithmetic Ability Questions

If the number x3451 is divisible by 3, where x is a digit, what can be the sum of all such values of x?

Two pipes A and B can fill an empty cistern in 18 and 27 hours, respectively. Pipe C can drain the entire cistern in 45 hours when no other pipe is in operation. Initially, when the cistern was empty Pipe A and Pipe C were turned on. After a few Pipe A was turned off and Pipe B was turned on instantly. In all, it took 55 hours to fill the cistern. For how many hours was Pipe B turned on?

In ΔABC, ∠B is right angle, D is the mid point of the side AC. If AB = 6 cm, BC = 8cm, then the length of BD is

If the sum of radius and height of a solid cylinder is 20 cm and its total surface area is 880 cm then its volume is

What is the slope of the line perpendicular to the line passing through the points (­-4,5) and (3,­-2)?

'P' is the smallest positive integer such that every positive integer N greater than 'P' can be written as a sum of two composite numbers. Then 'P' is

A water tank has two holes. The 1st hole alone makes the tank empty in 3 min and 2nd hole alone makes the tank empty in 5 min. If water leaks out at a constant rate, how long in minutes does it take if both the holes together empty the tank?

If selling price and cost price of an article are Rs. 684.25 and Rs. 595 respectively, then what is the profit percentage?