Quantitative Aptitude - Arithmetic Ability Questions

ABC is a right angled triangle. ∠BAC = 90 deg and ∠ACB = 60 deg. What is the ratio of the circum radius of the triangle to the side AB?

1/8 th of the audience of a program Jabardast were children, 2/5th of the audience were men and the rest women. If the number of women audience is 380, find the total number of audience in the program?

What is the value of 513-144 - 81 - 64 ?

A mixture of 50 kg of cement and gravel contains 10% of gravel. How many kg of gravel must be added to make the gravel content 28% in the new mixture?

In ∆ABC two medians BE and CF intersects at the point O and P,Q are the midpoints of BO and CO respectively. If the length of PQ=3cm, then the length of FE will be

In a ∆ABC, BC is extended upto D, ∡ACD =120°, ∡B = 1/2 A. Then ∡A is

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

In how many years will Rs 25,000 yield Rs 8,275 as compound interest at 10% per annum compounded annually?