Quantitative Aptitude - Arithmetic Ability Questions

If (x+1/x) = 5, then the value of 5xx2+5x+1?

If sin3A = x, then value of x is

The difference between simple interest on a certain sum at the rate of 6% per annum for 5 years and 6 years is 25.8. What is the sum (in Rs)?

When 0.090909.....is converted into a fraction, then the result is

If a+1b= b+1c = c+1a (a , b, c are not equal) then the value of abc = 

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 429, then what is the difference between the first and the third number?

What fraction of 2 hours is 12 seconds?

If Sec θ = 5/3, then what is the value of Cosec θ?