a, b, c, d, e, f, g are consecutive even numbers. j, k, l, m, n are consecutive odd numbers. The average of all the numbers is :
-
1]
\(3\left( {\frac{{a + n}}{2}} \right)\)
-
2]
\(\left( {\frac{{1 + d}}{2}} \right)\)
-
3]
\(\left( {\frac{{a + b + m + n}}{4}} \right)\)
-
4]
\(3\left( {\frac{{j + c + n +g}}{4}} \right)\)
Solution
Top 5 Similar Quiz - Based On AI&ML
Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api
| # | Quiz |
|---|---|
|
1
Discuss
|
Four years ago, the average age of A and B was 18 years. At present the average age of A, B, and C is 24 years. What would be the age of C after 8 years?
Solution |
|
2
Discuss
|
Average of two numbers is 8 and average of other three numbers is 3; the average of the five numbers is :
Solution |
|
3
Discuss
|
Distance between two stations A and B is 778km. A train covers the journey from A to B at 84 km per hour and returns back to A with a uniform speed of 56 km per hour. Find the average speed of train during the whole journey.
Solution |
|
4
Discuss
|
The average of a group of men is increased by 5 years when a person aged of 18 years is replaced by a new person of aged 38 years. How many men are there in the group?
Solution |
|
5
Discuss
|
The average monthly salary of 12 workers and 3 managers in a factory was Rs. 600. When one of the manager whose salary was Rs. 720, was replaced with a new manager, then the average salary of the team went down to 580. What is the salary of the new manager?
Solution |
|
6
Discuss
|
Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is 7/72. The numbers are:
Solution |
|
7
Discuss
|
A train covers the first 16 km at a speed of 20 km per hour another 20 km at 40 km per hour and the last 10 km at 15 km per hour. Find the average speed for the entire journey.
Solution |
|
8
Discuss
|
In a set of three numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?
Solution |
|
9
Discuss
|
The average of five different positive numbers is 25. x is the decrease in the average when the smallest number among them is replaced by 0. What can be said about x?
Solution |
|
10
Discuss
|
The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is-
Solution |
| # | Quiz |
