If the numerator of a fraction is increased by 250% and the denominator is increased by 400%. The resultant fraction is7/19 . What is the original fraction?

A mixture contains wine and water in a ratio of 5: 1. On adding 5 litres of water, the ratio of wine to water becomes 5: 2. The quantity of wine in the mixture is?

Find the HCF of 60, 148 and 382.

In a school, if there are 36% boys and 352 girls, then the number of boys is ________.

The difference between the compound interest and simple interest of a certain sum of amount is rupees 256.40 for 4 years at 10% rate per annum. Find the sum of money?

If the interest is compounded half yearly, then interest on Rs.16000 at 5% per annum, at the end of $$ {{1}{1\over 2}}$$ years is.

The sum of all natural numbers between 100 and 200. Which are multiple of 3 will be: 

If a shopkeeper increases the selling price of an article by 10% and gets a profit of 37.5% on its cost price. If he increases the selling price by 25% above on old selling price then he gets a profit of ₹ 225 on his cost price. Find the cost price of the article?