Quantitative Aptitude - Arithmetic Ability Questions

The circumference of a circle is equal to the perimeter of an equilateral triangle. If the radius of the circle is 7 cm what is the length of the side of the equilateral triangle?

What will be the net discount percentage of three successive discounts of 20%, 10% and 30%?

In the given figure, AB = 30 cm and CD = 24 cm. What is the value (in cm) of MN?

If Sec θ = 25/24 , then what is the value of Sin θ?

Between 50 and 150 how many numbers are divisible by 7?

The average weight of 25 candles is 40 grams. If some candles of weight 50 grams each were removed, then average weight becomes 37.5 grams. How many candles of weight 50 grams each were removed? 

M can complete 3/4 part of a work in 12 days and N can complete 2/7 part of the same work in 8 days. In how many days will both complete 11/14 part of the total work?

A sum of Rs 8000 is divided into two parts. The simple interest on first part at the rate of 21% per annum is equal to the simple interest on second part at the rate of 35% per annum. What is the interest (in Rs) of each part?