Dear Mockbankers

Today in **Banker’s Bounty,** you will get** Ratio and Proportion**** **concept and previous year questions.

Step 1: Watch the video prepared by MockBank’s expert.

Step 2: Read the concepts that follow.

Step 3: Put a timer before you solve the previous year questions on decimal and fraction in quiz and record how much time it takes you to solve it.

Step 4: Send us questions in comments section below which took maximum time and we will tell you a faster way to solve it.

**Basic Concepts**

**Ratio** is a fraction of two values. It can be represented in any of the following ways:

=> x/y, x : y , x÷y

- In ratio of the form x : y, x is called as the antecedent/first term and y is the consequent/second term.
- Generally, ratio is a handy way to compare two terms.
- For example : 4 / π > 1 , it is clear that 4 > π
- One thing that has to be remembered while comparing two numbers in a ratio is that they should be represented in same units. For example, if x is in meters and y in litres they cannot be compared by using ratio as they are expressed in different units – meters vs litres.

A **proportion** is the equality of two ratios/ fractions.

- If x : y = a : b, it can be written as x : y :: a : b and it is said that x, y, a, b are in proportion.
- Here x and b are called extremes, while y and a are called mean terms.
- Product of means=Product of extremes

Thus,

x :y :: a : b => (y∗a)=(x∗b) - If x : y=a : b

b is called the fourth proportional to x, y and a.

a is called the third proportional to x and y.

- Sub-duplicate: Sub-duplicate ratio of (a:b) is (a^1/2: b^1/2)
- Duplicate ratio of (a:b) is (a^2:b^2)
- Triplicate Ratio:Triplicate ratio of (a:b) is (a^3:b^3)
- Sub-triplicate Ratio: Sub-triplicate ratio of (a:b) is (a^1/3:b^1/3)
- If a/b=c/d then, a+b/a−b=c+d/c−d This is known as Componendo and Dividendo.
- We say that x is directly proportional to y, if x=ky for some constant k and we write, x∝y
- We say that x is inversely proportional to y, if xy=k for some constant k and we write, x∝1y

sir its 23:33:60 solved correctly but just confused by the option which is 0.981944444.

What in your opinion is the correct answer Deepika

6th ques not getting…ans is something else ,solution is something else ??

Thanks Rabi

TEST IS SO GOOD FOR PRELIM

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