How To Solve A Ratio Problem

Amongst all the problems that are asked in the quantitative aptitude section of IBPS PO Exam, Ratio and Proportion Problems are the easiest.

Amongst all the problems that are asked in the quantitative aptitude section of IBPS PO Exam, Ratio and Proportion Problems are the easiest.

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Solution: Let the number of chocolates be 5x and the number of ice-cream cones be 8x. Therefore, number of ice-cream cones in the box = 8*6 = 48.

A lot of questions on ratio are solved by using proportion. If a : b = c : d, then a, b, c, d are said to be in proportion and written as a:b :: c:d or a/b = c/d.

In the 20th Smart Method in this series of blog posts we will discuss a trick that will help you solve ratio and proportion problems without using the long list of ratio and proportion formulas, that too in only 5 seconds!

The school book approach to this question uses the ratio and proportion formulas and starts with assuming T (or any other variable) as the total and then dividing it based on the relative division of the quantity between the quantities.

Let the quantity of sugar solution to be added be x litres.

Setting up the proportion, sugar solution / salt solution = (15 x)/30 = 2/1 → x = 45.

Let us take a look at some examples: Question: In a mixture of 45 litres, the ratio of sugar solution to salt solution is 1:2.

What is the amount of sugar solution to be added if the ratio has to be 2:1?

If 60kgs of this sweet has to be prepared, how much sugar is required?

Solution: Let the quantity of sugar required be x kgs. Therefore, 20 kgs of sugar is required for 60 kgs of sweet.