Quantitative Aptitude - Arithmetic Ability Questions

A Village lost 12% of its goats in a flood and 5% of remainder died from diseases. If the number left now is 8360. What was the orignal number before the flood?

A number exceeds its 1/6 by 30. What is the number?

Find the least number which when divided by 12, 15, 18 and 27 leaves remainders 10, 13, 16 and 25 respectively.

Fraction that lies between 2/5 and 4/9 is

Pipe A can empty a filled tank in 28 hours while Pipe B can fill the same tank, when empty in 35 hrs. If alternatively Pipes A and B are turned on for an hour each time, starting when the tank is full, how long will it take to empty the tank?

Which of the following is NOT prime number?

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

Consider two-digit numbers which remain the same when the digits interchange their positions. What is the average of such two-digit numbers?