Question
The average of 8 numbers is 21. The average of the first 5 numbers is 19 and the average of the last 4 numbers is 23. What is the 5th number?
More Average Questions
- What is the average of the squares of the first 29 natural numbers?
- The cost of running a mini train is partly fixed and partly variable. When 50 tickets are sold, the average cost per ticket is Rs. 45. When 70 tickets are ...
- The combined average number of pens with persons ‘B’ and ‘C’ is 75% of the combined average number of pens with persons ‘A’ and ‘D’. The overall average nu...
- The batsman has an average of 32 in 50 innings. His scores in the next 5 innings are 40, 30, 35, 45, and 50. Find his new batting average.
- In an exam of 100 marks, the average marks of a class of 38 students are 72. If the top 3 scorers of the class leave, the average score falls “down by 1. I...
- A set contains ten numbers. The average of the first six numbers is (x − 4), and the average of the last three numbers is (x + 2). The average of the entir...
- The average age of 12 boys in the group is 9 years. If 2 more boys join the group, the average is increased by 1 year. What is the average age (in years) o...
- The average marks of 30 students in Class I is 60. The average marks of some students in Class II is 75. When all students of both classes are taken togeth...
- Find the average of prime numbers between 10 and 20.
- There are three numbers such that when the average of any of the two numbers is added with the third number, sum obtained will be 122.5, 120.5 and 121.5. F...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)