Quantitative Aptitude - Arithmetic Ability Questions

Convert binary 10110 to decimal.

If 3x+22x+1 = a2x+1+bx+2 be an identity, then the value of b

What is the simplified value of (cos A + sin A)(cot A + tan A)?

To get number 40, the number 56/9 should be multiplied with

Which of the below given fractions is NOT equal to 9/17?

One pipe can fill an empty cistern in 4 hours while another can drain the cistern when full in 10 hours. Both the pipes were turned on when the cistern was half-empty. How long will it take for the cistern to be full?

Which of the following is NOT prime number?

What sum will produce the same interest in 9 years at the rate 8% simple interest as Rs. 800 producein 3 years at 9/2% per annum?