Quantitative Aptitude - Arithmetic Ability Questions

√(1 + tan2A)/tanA is equal to

The areas of two similar triangles ΔABC and ΔPQR are 36 sq cms and 9 sq cms respectively. If PQ = 4 cm then what is the length of AB (in cm)?

A solid sphere of radius 3 cm is melted to form a hollow right circular cylindrical tube of length 4 cm and external radius 5 cm. The thickness of the tube is

Area of _____ equals square of its side.

Given a -­ b = 2, a3 - b3=26 then (a + b)2 is

If x2 – 16x – 59 = 0, then what is the value of (x – 6)2 + [1/(x – 6)2]?

If x2 – 4x + 1 = 0, then what is the value of x9 + x7 – 194x5 – 194x3?

A sum of Rs 6000 becomes Rs 7200 in 2 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 3 years?