Ram sold an article for Rs 380 at some profit. Had he sold it for Rs 300, then there would have been a loss equal to one-third at the initial point. What was the cost price of the article? 

Find the compound interest on a sum of Rs. 46875 for 2 years at 12% p.a, if interest is compounded 8 months?

A certain sum of Rs.4200 becomes Rs5523 at 11% p.a simple interest in a certain time. What is the simple interest on the sum of Rs. 4800 at the same rate and in same time period?

Let p, q and r be the fraction such that p<q<r. If r is divided by p, the result is 5/2, which exceeds q by 7/4. If $$p+q+r=1{11\over12} $$ then what is the value of (r-p)?

In a town, 60% of the total voters is male and the rest are females. If 60% of the males are literate and 70% of the females are literate, then by what percent is the number of literate males more than that of illiterate females?

Two people A and B started their journey from P to Q and Q to P respectively. After crossing each other, A and B completed the remaining part of their journey in 3 hour 20 mins and 4 hours 48 mins respectively. If the speed of B is 80 km/hr, then find the speed of A in (km/ hr)? 

The ratio of milk and water in to mixtures A and B are 3:4 and 5:9 respectively. If these two mixtures are mixed in the ratio of 2:3. Then find the ratio of milk and water in the resultant mixture. 

At what annual percentage rate, 10 years of simple interest on an amount will be $$ {2\over 5}$$ of the addition?