Ratio And Propo...

The average age of a person and his son is 30 years. The ratio of their age is 4 : 1 respectively. Find the age of son.

If Rs. 782 be divided into three parts, proportional to  1/2 = 2/3 = 3/4  then the first part is:

A bag contains one rupee, 50 paise 25 paisa coins in the Ratio of 8:9:11. If the total money in the bag is Rs. 366, find the number of 25 paisa coins.

A mixture contains alcohol and water in the ratio of 4 : 3. If 14 L of water is added to the mixture the ratio of Alcohol and water becomes 3 : 4, find the quantity of alcohol in the mixture.

Rahul obtained 12 marks more than that of Tanvi. If the ratio of their marks is 4:3. Find the sum of their marks.

One half of a certain number is equal to 65% of the second number. Find the ratio of Ist number to 2^nd number.

If  , then find the value of  

Monthly income of P and Q are in the ratio 2 : 3 and their monthly expenses are in the ratio of 5 : 9. If each of them saves Rs 300 per month, find their respective monthly income

What number has to be added to each term of 3 : 5 to make the ratio 5 : 6?

The ratio between two numbers is 3 : 4. If each number is increased by 3, the ratio becomes 4 : 5. Find the difference between the numbers.