Quantitative Aptitude - Arithmetic Ability Questions

In a committee there are 25 members. If two members whose ages are 64 years and 40 years are replaced by the two new members, then average age of 25 members is decreased by 2 years. What is the average age (in years) of the new members?

What least value must be assigned to '*' so that the number 63576 * 2 is divisible by 8?

Rameshwar goes on a trip on his motor-cycle and rides for 405 kms. If he rides for 6 hours at a speed of 45 km/hr, find at what speed he travels for the remaining 3 hours of the journey?

The effective annual rate of interest corresponding to a nominal rate of 15% per annum payable half-yearly is

When a number is increased by 21, it becomes 114% of itself. What is the number?

The marked price of an article is Rs 2400. It is sold at two successive discounts of 10% and 15%. What is the selling price (in Rs) of the article?

If 3 tan θ = cot θ where 0 < θ < π/2, then what is the value of θ ?

What is the value of [1 – sin (90 – 2A)] / [1 + sin (90 + 2A)]?