Average for RRB Clerk 2025, Get Previous Year Asked Questions with Answers

In the IBPS RRB Clerk 2025 Prelims exam, every mark counts. You may get 1–3 questions from Average in the Quantitative Aptitude section. In most states, the good attempt range is usually around 70–78 out of 80, which means you really can’t afford to skip any topic, not even the simple ones like Average. So, in this blog, we will tell you about the types of average questions asked in the RRB Clerk exam and how you can solve them easily.

What Is Average and Its Formula?

Average means the equal share of a total value divided among all items.

Basic Formula:

Average = Total Sum ÷ Number of Items

Let’s relate this to the questions given above:

• If you know the average and the number of people, you can find the total.
  
• If you know the total and the number, you can find the average.
  
• Sometimes, you will use this to find a missing value, a person’s age, or the number of people.
  

Importance & Weightage of Average Questions in RRB Clerk 2025

In the Quantitative Aptitude section, 1 to 3 questions on Average are commonly asked in Prelims. These questions are moderate to easy and are usually direct or mixed with topics like age, weight, rainfall, or marks.

Why you shouldn’t skip it:

• Easy to learn and solve
  
• High accuracy rate
  
• Saves time for tougher arithmetic topics

Most Expected Average Questions for RRB Clerk 2025

Here we are providing the most expected Average RRB Clerk questions. Candidates can click the PDF link and attempt all the questions.

Question 1: In a group, average age of certain number of boys is 7 years and the average age of 40 girls is 15 years. Find the number of boys in the group, if average age of each person in the group is 8 years.

A) 300

B) 280

C) 250

D) 270

E) 310

Question 2: The average rainfall from Monday to Wednesday is 72 cm and the average rainfall from Wednesday to Sunday is 68 cm. If the average rainfall in the week is 65 cm, then find the rainfall on Wednesday.

A) 97 cm

B) 101 cm

C) 89 cm

D) 103 cm

E) None of these

Question 3: The average age of a class of 45 students is 17 years. The average age of the class is increased by six months, if the age of the class teacher is included. Find the age of the class teacher.

A) 42.5 years

B) 42 years

C) 41 years

D) 40 years

E) 41.5 years

Question 4: There are four consecutive odd numbers. The average of odd numbers is twice the average of the four consecutive even numbers. If the smallest even number is 40, then find the largest odd number.

A) 89

B) 85

C) 91

D) 87

E) None of these

Question 5: The average of marks scored by A, B and C is 90 marks. The sum of marks scored by A and B is 178. The marks scored by C is what percentage of the average marks of A, B and C?

A) 166.66%

B) 182.25%

C) 102.22%

D) 175.75%

E) None of these

Average Questions PDF

An example of Average with questions and answers in PDF format is provided below. Download now.

Study Resources to Level Up Your RRB Clerk 2025 Exam Preparation (Based On Latest Pattern)

To nail the IBPS RRB Clerk 2025 exam, candidates can boost their preparation with our study resources, such as mock tests, topic-wise tests, and mini mocks, to improve their accuracy and speed.

Tips to Solve Average Questions Easily

Use the Basic Formula: Average = Total / Number

Always start with this simple rule:
Average = Total Sum ÷ Number of Items

If you are given the average and the number, you can easily find the total.
If you are given the total and the number, you can find the average.

Assume Variables Smartly

In many questions (like Q1 or Q8), you don’t know the total number. In that case, assume unknowns as x, and use average = total/number to form an equation. Example: If boys’ average is 7 and the number is x, then the total = 7x

Use the Difference Method for Faster Calculations

When the average changes due to adding/removing someone (like a teacher), multiply the difference in average by the total number of people to find the person’s age or value quickly.Example: If the average increases by 0.5 for 45 students, the teacher’s age = 45 × 0.5 + the old average

Use Alligation/Ratio for Group Average Problems

When two groups (like boys and girls) with different averages are given, then you can use the alligation method to find the average.

Total = (boys × avg) + (girls × avg)
Then divide by the total students to get the average.

Always Keep Units and Options in Mind

Sometimes, questions look hard but just require one small step or approximation. Check if the question needs an answer in percentage, kg, years, etc. You can round off when options are far apart and values are approximate.

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