Quantitative Aptitude - Arithmetic Ability Questions

$$\begin{gathered} ∆ABC is similar to ∆PQR. If ratio of perimeters of ∆ABC and ∆PQR is 1:2 and \\ if PQ = 10 cm then what is the length of AB (in cm)? \end{gathered}$$

What is the area (in square units) of the figure enclosed by the x-axis, the y-axis and the line x + 2y = 6 ?

Find the odd word/letters/number pair pair from the given alternatives.

Find out the odd word/letters/number/number pair from the given alternatives.

If the difference of the compound interest and the simple interest on a sum of money for 3 years is Rs. 186. Find the sum of money, if the rate of interest in both case be 10%

If secA = x, then the value of x is

If the value of √30  is approximately 5.477, then what is the approximate value of 56 ?

What is the value of 128 + 7232