Banking & Insurance

Ratio And Proportion For IBPS RRB Exam, Check Complete Details

Home » Banking & Insurance » Ratio And Proportion For IBPS RRB Exam

Ratio And Proportion For IBPS RRB- Ratio is nothing but a comparison of two quantities by division, thus representing the relation that one quantity has with the other. This is represented as a:b, where a is the Antecedent and b is the Subsequent. The Ratio and Proportion is one of the easiest topics to feature in any banking exam, as this type of question can be solved in a few seconds. Hence, in this article, we shall be discussing some of the important concepts, tips, and tricks to solve questions on ratio and proportion in an exam.

General Tips to Solve Ratio And Proportion

  • It is important to read and understand the questions thoroughly before you look to answer them.
  • The question on ratio and proportion can be solved quickly, depending on your preparation level. However, in case you find yourself spending more time then better to skip the question and come back to it later when you have time.
  • Although several formulas can be learnt, still the best way to solve them is by applying common sense and following the instructions given by question word by word.
  • The trick to solving these types of questions quickly is by practising several questions in a controlled environment. For this, we would suggest you enrol for a mock test series that will expose you to a variety of such types of questions. Further, these test series will also help you to understand the areas where you are strong and where you need to pay more attention.
  • You may also download the Practice Mock app on your smartphone and take questions on Mixture and Alligation for free and compare your score with that of your competitor.

Important Questions For Ratio And Proportion

Question 1: Present ages of Mohit and Sohit are in the ratio 3:4, respectively. Present age of Rohit is 50% more than the present age of Sohit. Ratio of the age of Mohit after one year to the age of Rohit three years ago was 5:9. Find the present age of Sohit.

A) 16 years

B) 24 years

C) 32 years

D) 40 years

E) 48 years

Question 2: Four years ago, ratio of ages of Ram and Shyam was 13:15, and 4 years hence, ratio of their ages is 15:17. Find the average present age of Ram and Shyam.

A) 54 years

B) 58 years

C) 56 years

D) 62 years

E) 60 years

Question 3: Five years ago, age of father was double the age of his son, and 15 years hence, the ratio of their ages becomes 8:5. Find the average of their present age.

A) 60 years

B) 40 years

C) 65 years

D) 50 years

E) 45 years

Question 4: Six years ago, Avantika was 12 years younger than Anamika.12 years hence, the ratio of their ages becomes 3:4. Find their average present age of both of them.

A) 30 years

B) 32 years

C) 36 years

D) 28 years

E) None of these

Question 5: In a school, there are 240 students. The number of boys is 40% less than the number of girls. Find the ratio of the number of Boys to the number of Girls.

A) 3:5

B) 2:5

C) 1:3

D) 4:7

E) None of these

Question 6: 4 years hence, the respective ratio between A’s age and B’s age will be 9:11. 6 years ago, if their average age was 30 years, what is B’s present age (in years)?

A) 40 years

B) 32 years

C) 44 years

D) 36 years

E) None of these

Question 7: The ratio of the income of A, B and C is 5:6:7, respectively. If the income of B is increased by 25%, then it becomes Rs. 5250, then find the difference between the original income of A and C.

A) Rs. 2000

B) Rs. 1600

C) Rs. 1400

D) Rs. 1800

E) None of these

Question 8: Present ages of Akash and Itij are in the ratio 7:5 respectively. Gaurav is 3 years younger to Akash while Priya is 5 years elder to Itij. Find the ratio of the present ages of Gaurav to Priya if the present average age of Priya, Gaurav, Akash and Itij is 24 years six months.

A) 1:1

B) 2:3

C) 3:2

D) 5:4

E) 4:5

Question 9: Ratio of number of apples eaten by Kishan to Sourav is 4:7, respectively while ratio of number of apples eaten by Sourav to Vishal is 5:3, respectively. If number of apples eaten by Vishal is 21, then find the number of apples eaten by Kishan.

A) 20

B) 28

C) 24

D) 35

E) 32

Question 10: Four years ago, ratio of age of Goli and Bholi is 5:7, respectively. What will be the ratio of age of Goli to Bholi after six years, if present age of Goli is 29 years.

A) 8:11

B) 4:7

C) 5:6

D) 7:9

E) 9:13

Solution 1: C)

Let the present ages of Mohit and Sohit are 3x years and 4x years, respectively.

So the present age of Rohit = 1.50 × 4x = 6x years

According to question: (3x + 1)/ (6x – 3) = 5/9

27x + 9 = 30x – 15

3x = 24, x = 8

So the present age of Sohit = 8 × 4 = 32 years

Hence, option c.

Solution 2: E)

Let present age of Ram and Shyam be P years and Q years respectively.

According to question,

(P – 4)/(Q – 4) = 13/15

15P – 60 = 13Q – 52

15P – 13Q = 8………………….(1)

And, (P + 4)/(Q + 4) = 15/17

17P + 68 = 15Q + 60

15Q – 17P = 8…………………..(2)

Solving equation (1) and (2), we get

P = 56 and Q = 64

Average present age of Ram and Shyam = (56 + 64)/2 = 120/2 = 60 years

Hence, option e.

Solution 3: D)

Let present age of father and son be F and S.

According to question,

F – 5 = 2 × (S – 5)

F – 5 = 2S – 10

F = 2S – 5…………………………….(1)

(F + 15)/(S + 15) = 8/5

5F + 75 = 8S + 120

5F = 8S + 45

5 × (2S – 5) = 8S + 45

10S – 25 = 8S + 45

2S = 70

S = 35 years

F = 70 – 5 = 65 years

Desired average = (65 + 35)/2 = 50 years

Hence, option d.

Solution 4: A)

Let present age of Avantika and Anamika be X years and Y years respectively.

According to question,

(X – 6) = (Y – 6) – 12

X = Y – 12…………………………….(1)

And, (X + 12)/(Y + 12) = 3/4

4X + 48 = 3Y + 36

Putting value of X from equation (1)

4 × (Y – 12) + 48 = 3Y + 36

4Y – 48 + 48 = 3Y + 36

Y = 36 years

X = 24 years

Desired Average = (36 + 24)/2 = 30 years

Hence, option a.

Solution 5: A)

Let the number of girls be x

So the number of boys = 60x/100 = 0.6x

Required ratio = 0.6x:x = 3:5

Hence, option a.

Solution 6: A)

Let the present age of A and B be ‘x’ years and ‘y’years respectively.

(x – 6 + y – 6)/2 = 30

x + y – 12 = 60

x + y = 72 —–(i)

(x + 4)/(y + 4) = 9/11

11x + 44 = 9y + 36

11x – 9y = -8 —–(ii)

On solving (i) and (ii), we get

x = 32 and y = 40

So, B’s present age is 40 years.

Hence, option a.

Solution 7: C)

Income of B = 5250/1.25 = Rs. 4200

So, income of A = 4200 × 5/6 = Rs. 3500

Income of C = 4200 × 7/6 = Rs. 4900

Required difference = 4900 – 3500 = Rs. 1400

Hence, option c.

Solution 8: A)

Let the present ages of Akash and Itij be 7x years and 5x years, respectively.

So, the present age of Gaurav = 7x – 3 years

Present age of Priya = 5x + 5 years

According to question: 7x + 5x + 7x – 3 + 5x + 5 = 4 × 24.5

24x + 2 = 98

24x = 96

x = 4

So, the present ages of Priya, Gaurav, Akash and Itij are 25 years, 25 years, 28 years and 20 years respectively.

So, the desired ratio = 25:25 = 1:1

Hence, option a.

Solution 9: A)

Number of apples eaten by Kishan = 4/7 × 5/3 × 21 = 20

Hence, option a.

Solution 10: D)

Age of Goli 4 years ago = 29 – 4 = 25 years

Present age of Bholi = 7/5 × 25 + 4 = 39 years

Required ratio = (29 + 6)/(39 + 6) = 35:45 = 7:9

Hence, option d.

Check Related Blogs For IBPS RRB PO 2024

Check Related IBPS RRB PO Blogs
IBPS RRB PO Syllabus 2024IBPS RRB PO Cut Off 2024
IBPS RRB PO Exam Pattern 2024IBPS RRB PO Previous Year Question Paper 2024
IBPS RRB PO Salary 2024

Check Related Blogs For IBPS RRB Clerk 2024

Check Related Blogs For IBPS RRB Clerk 2024
IBPS RRB Clerk Syllabus 2024IBPS RRB Clerk Cut Off 2024
IBPS RRB Clerk Exam Pattern 2024IBPS RRB Clerk Previous Year Question Paper 2024
IBPS RRB Clerk Salary 2024

Ratio And Proportion For IBPS RRB Exam FAQ

What is a ratio?

A ratio is a quantitative relationship between two numbers showing how many times one value contains or is contained within the other.

How do you solve a proportion problem?

To solve a proportion problem, cross-multiply the terms and then solve for the unknown variable.

Sweta Singh

I’m a dedicated SEO Executive who churns out blogs to help aspirants prepare for SSC, Banking and Engineering exams. My blogs are a one-stop destination for accurate and comprehensive information on these competitive exams. My ultimate goal is to provide accurate and easy-to-understand information to candidates by covering topics like exam patterns, syllabus and study techniques and more. Join me on this journey of knowledge!

Recent Posts

IBPS SO Expected Cut Off 2024, Check Expected Cut Off Marks

Here in this article we are providing the IBPS SO Expected Cut Off 2024. Candidates…

11 hours ago

Trigonometry Most Expected Questions for SSC CGL Tier 2 Exam

Explore the Trigonometry Most Expected Questions for SSC CGL Tier 2 Exam to get the…

15 hours ago

SSC CHSL Tier 2 Admit Card 2024, Application Status Out

In this blog, we have provided the details related to the SSC CHSL Admit Card…

16 hours ago

Union Bank LBO 2024 Free Preparation Resources for Online Exam

Explore the Union Bank LBO 2024 Free Preparation Resources for Online Exam to boost and…

17 hours ago

IBPS RRB PO Mains Scorecard 2024 Out, Check Direct Download Link

The IBPS RRB PO Mains Scorecard 2024 has been released on its official website. Candidates…

18 hours ago

IBPS SO Exam Analysis 2024, 9th Nov, 1st Shift, Check Difficulty Level

In this article we are providing IBPS SO Exam analysis 9th Nov, 1st Shift, candidates…

22 hours ago