Testbook Logo
Exams SuperCoaching Test Series Skill Academy
More
English
Hindi

Question

Download Solution PDF

The sum of 8 numbers is 684. Find their average.

This question was previously asked in
RPF Constable 2024 Official Paper (Held On 03 Mar, 2025 Shift 2)
Download PDF Attempt Online
View all RPF Constable Papers >
  1. 86.5
  2. 84.5
  3. 85.5
  4. 83.5

Answer (Detailed Solution Below)

Option 3 : 85.5
Free Tests
View all Free tests >
Free
General Science for All Railway Exams Mock Test
2.1 Lakh Users
20 Questions 20 Marks 15 Mins
Start Now

Detailed Solution

Download Solution PDF

Given:

Sum of 8 numbers = 684

Number of numbers = 8

Formula Used:

Average = Sum of the numbers / Total count of the numbers

Calculation:

⇒ Average = 684 / 8

⇒ Average = 85.5

The correct answer is option 3.

Download Solution PDF
Latest RPF Constable Updates

Last updated on Jun 2, 2025

-> The Railway Recruitment Board has released the RPF Constable 2025 Response Sheet on 24th March 2025. As per the official notice, the RPF Constable Answer Key will be available from 24th March 2025 to 29th March 2025. 

-> The RRB ALP 2025 Notification has been released on the official website. 

-> The Examination was held from 2nd March to 18th March 2025. Check the RPF Exam Analysis Live Updates Here.

-> RPF Constable 2025 application status was released in January 20, 2025.

‹‹ Previous Ques
Next Ques ››

More Average Questions

Q1.While calculating average marks of 60 students, the two digits of original marks of a student are written reversed and thereby average of marks is increased by 0.6 Find the difference between the two digits of marks of the student?  
Q2.Average of weight of five persons is 64 kg. Average of 3 girls is 58 kg. Find the average weight of two boys?
Q3.Average employee in office A, B, C, and D is 40 and average employee of office B, C, D, and E is 37. If number of employees in office E is 30. Find the average employee in office A and E?
Q4.Average of numbers A, B & C is 60. If the ratio of sum of A & B to that of C is 7 : 2, then find the value of B. Given that value of A is 20 more than B.
Q5.For three consecutive years, the costs of a product were Rs. 114 per litre, Rs. 228 per litre and Rs. 285 per litre respectively. If a common man spends an average of Rs.12540 per year on that product, then what is the average cost of that product per litre for the three years? (In Rs.)
Q6.If the average marks of three classes of 55, 60 and 65 students are 55, 60, 65 respectively, find the average marks of all the students. (In approximately)
Q7.There are 89 members in group A, 59 members in group B and 75 members in group C. All the members of these groups went to a restaurant. The average amount spent on each member of group A, B and C is ₹385, ₹277 and ₹131, respectively. The total average amount (in ₹) spent per member is:
Q8.The sum of five numbers is 655. The average of the first two numbers is 76 and the third number is 106. Find the average of the remaining two numbers?
Q9.The sum of 8 numbers is 684. Find their average.
Q10.The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 103. Find the average of the remaining two numbers?
Suggested Test Series
View All >
RPF Constable Mock Test Series 2024
1197 Total Tests with 9 Free Tests
Start Free Test
Reasoning for All Railway Exams Previous Year Paper Mock Test
753 Total Tests with   2 Free Tests
Start Free Test

More Quantitative Aptitude Questions

Q1.Perimeter of a rectangular field is equal to the perimeter of a triangular field whose sides are in the ratio 3:2:4 respectively. lf area of rectangular field is 500 m2 and sides are in the ratio 5:4 respectively, then calculate the longer side of the triangular field.
Q2.A cistern has an inlet pipe and an outlet pipe. Inlet pipe can fill three-fourth of the cistern in 24 minutes while outlet pipe can empty the one-third filled cistern in 16 minutes. If both the pipes are opened together, then the cistern will be completely filled in-
Q3.In a family, three sons were born for every 3 years one after the other. If the ratio of present ages of father and the eldest son is 15:7 and the average of the present ages of the 3 sons is 18 years. What will be the ratio of the ages of the father and the youngest son after 5 years?
Q4.Train A of length 80m while moving crosses a pole in 16 seconds. lf it is known that the lengths of train B and train A is in the ratio of 3:1, then how long would it take train B to cross a platform which is half the length of train A if the speed of train B is same as that of train A?
Q5.Can A and Can B contain a mixture of soda and water in the ratio of 5 : 3 and 7 : 2 respectively If soda and water are taken out in the ratio of P : Q from can A and B respectively to form a new mixture in which the ratio of soda and water is 12 : 5 respectively, then find the value Of P:Q?
Q6.A boat can covers a certain distance in upstream and same distance in downstream in total of 7 hours 48 minutes, If upstream speed of the boat is 62.5%. of downstream speed of the boat and speed of the stream is 3 km/h, what is the total distance covered by the boat?
Q7.M and R went for shopping and bought two sarees each at different cost. Cost price of saree bought by R is Rs.250 more than the cost price of saree bought by M. Shopkeeper earned a profit of 20% on selling both the sarees together to R and M which he bought them at total Rs.6000. At what cost did M buy saree?
Q8.There are three numbers m, n, and p, such that sum of m and n is 144, sum of thrice of n and five times of p is 464, and sum of p and m is 160, then what is the value of p?
Q9.While calculating average marks of 60 students, the two digits of original marks of a student are written reversed and thereby average of marks is increased by 0.6 Find the difference between the two digits of marks of the student?  
Q10.Simple interest received on a certain sum at a rate of simple interest of 5% for 2 years is Rs.780. If the rate of interest remains same, what will be the total amount at the time of withdrawal at the end of 5 years.  
Exams
Test Series
Previous Year Papers
Syllabus
Cut Off
Eligibility
Coaching
Important Exams
Super Coaching
Testbook USA SAT Exam
Testbook USA ACT Exam
US College Admissions Guide
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
[email protected]
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Our Apps
Follow us on
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Get Free Access Now
Hot Links： teen patti master 2023 teen patti casino teen patti master official teen patti download teen patti party