Quantitative Aptitude - Arithmetic Ability Questions

At what rate of compound interest per annum will a sum of Rs 20000 become Rs 25088 in 2 years?

If √[(1 + cosA)/2] = x, then find the value of x.

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

Working 5 hours a day, Shivam can read a book in 24 days. How many hours a day should he work so as to finish the same work in 8 days?

If the volume of a cylinder is 3850 cubic cm and height is 25 cm, what is its radius? (Take π = 22/7)

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

The average revenues of 13 consecutive years of a company is Rs 70 lakhs. If the average of first 7 years is Rs 65 lakhs and that of last 7 years is Rs 77 lakhs, find the revenue for the 7th year.

Divide 3740 in three parts in such a way that half of the first part, one-third of the second part and one-sixth of the third part are equal.