Quantitative Aptitude - Arithmetic Ability Questions

At what rate of compound interest per annum will a sum of Rs 10000 become Rs 12321 in 2 years?

Ram cycles 5 km in the south, and turns left to travel 5 km further. From there, he takes a right turn and travels 5 km more. How far is he from his original position?

A can do a work in 20 days and B in 50 days. If they work on it together for 5 days, then what fraction of work is left?

Seven years ago, the average age of A, B and C was 51 years. If A is 3 years older than B and B is 3 years older then C then the present ages of A, B and C are ( in year)

A train starts from a place A at 8:00 a.m. and arrives at another place B at 1:30 p.m. on the same day. If the speed of the train is 30 km/hr, then what will be the distance (in km) covered by the train?

If 10% loss is made on selling price, then the rate of loss on the cost price will be

What is the value of 1xp-q+1+1xq-p+1?

If the radius of a circle is increased by 21%, then its area will increase by what percent?