Quantitative Aptitude - Arithmetic Ability Questions

The average of four consecutive odd numbers is 64. What is the value of largest number?

5 year hence, ratio of ages of A and B will be 7 : 5 and difference between their ages will be 4 years. What are present ages (in years) of A and B
respectively?

What is 0.53 + 0.53equal to ?

If 2x-12x = 5, then what is the value x2 + 116x2 - 2

Two numbers are 30% and 37% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

If a -­ b = 3 and ab =28, then a3 - b3 is

What is the value of tanπ4+A×tan3π4+A ?

The value of sinθ1+cosθ + sinθ1-cosθ