A merchant marks his goods at Rs. 900 and allows a discount of 25%. If he still gain 12.5%, then the cost price of the article is

In a town, the population was 8000. In one year, male population increased by 10% and female population increased by 8% but the total population increased by 9% . The number of males in the town was:

40 % are the passing marks. A student gets 250 marks yet fails by 38 marks. What are the maximum marks? 

Natasha decided to spend 45% of her salary on shopping. On completion of her shopping, she realized that she had spent only Rs.11475, which was 60% of what she had decided to spent. How much is Natasha’s salary?

A number increased by   $$22{1 \over 2}\%$$ gives 98 as result. The number is: 

In an election between two candidates, the candidate getting 60 % of the votes polled, is elected by a majority of 14, 000 votes. The number of votes obtained by the winning candidates is 

In a college the number of students studying Arts, Commerce and Science are in the ratio of 3:5:8 respectively. If the number of students studying Arts, Commerce and Science is increased by 20%, 40%, and 25% respectively, what will be the new ratio of students in Arts, Commerce and Science respectively?