Quantitative Aptitude - Arithmetic Ability Questions

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?

An hour-long test has 60 problems. If a student completes 30 problems in 25 minutes, then the required seconds he has taken on average for computing each of the remaining problems is

The value of 8(sin6θ + cos6θ) - 12(sin4θ + cos4θ) is equal to

A person while buying a dress on sale spends Rs. 45 and saves Rs. 5, what is the percentage of his savings?

If x + 3 ≤ 4x + 4 and 3(4 - x) - 4 ≥ 2x - 2, then x can take which of the following values?

ΔDEF is right angled at E. If cosD = 8/17, then what is the value of secF ?

The difference between the compound interest (compounding annually) and simple interest on a sum at the rate of 12% per annum for 2 years is Rs 360. What is the sum (in Rs)?

If the length of the side of an equilateral triangle is 6 cm, what is its area?