Quantitative Aptitude - Arithmetic Ability Questions

If x + y = 5, x3 + y3 = 35, then what is the positive difference between x and y?

cot2A + cos2A is equal to

Complete the analogy 3 : 11 :: 7 : ___

From a container of milk, 5 litres of milk is replaced with 5 litres of water. This process is repeated again. Thus in two attempts the ratio of milk and water became 81 : 19. The initial amount of milk in the container was

A dishonest milkman buys milk at Rs 24 per litre and adds 1/3 of water to it and sells the mixture at Rs 32 per litre. What is his gain?

P and Q are two alloys which are prepared by mixing tin and lead in the ratio of 12 : 5 and 4 : 3 respectively. If equal quantities of alloys are melted to form athird alloy R, then what is the ratio of tin and lead in alloy R?

If a+b=2c then the value of aa-c+cb-c is equal to (where a≠b≠c)

If 23x + 23y = 184, then what is the average of x and y?