List of top Mathematics Questions on Average

Average age of a nuclear family of 4 members, five years ago was 12 years. On including age of the boy from neighbourhood, the present average age is 15 years. What is the present age of the boy from the neighbourhood?
The average runs scored by 3 players is 160 per match. Their runs are in a ratio 4:6:2. What will be the average if the player who scored the minimum runs hits a century in the next match and the other two play with the same runs?
Amit cycled from his house to the garden at speed of 12 km/hr and came back to his house at the speed of 6 km/hr. if the total time taken by Amit to complete the journey was 6 hours, then find the distance between Amit’s House and garden?
Take 6 distinct natural numbers such that the average of the two smallest numbers is 14, and the average of the two largest numbers is 28. Then, the maximum possible value of the average of these six numbers can be how much?
A team of 8 shooters joins a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. Determine the number of points, the team scored in the given competition?
A company has 40 employees whose names are listed in a certain order. In the year 1925, the average bonus of the first 30 employees was Rs. 40000, of the last 30 employees was Rs. 60000, and of the first 10 and last 10 employees together it was Rs. 50000. Next year, the average bonus of the first 10 employees increased by 100%, of the last 10 employees increased by 200% and of the remaining employees was unchanged. Then, the average bonus, in Rupees, of all the 40 employees together in the year 1926 would have been:
The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the average weight of all the boys in the class?
For predicting the straight-line trend in the sales of washing machines (in thousands) on the basis of 8 consecutive years' data, the company calculates 4-year moving averages. If the sales of washing machines for respective years are \( a, b, c, d, e, f, g, \) and \( h \), then which of the following averages will be computed?
(A) \( \frac{a + b + c + d}{4} \)  
(B) \( \frac{a + c + d + e}{4} \)  
(C) \( \frac{c + d + f + h}{4} \)  
(D) \( \frac{b + c + d + e}{4} \)  
Choose the correct answer from the options given below:
If the average of \(15, 25, 19, 20, 23, 18\) and\( (x-3)\) is \(20\). then Find the average of \(x, (x+6), (2x-1)\) and \(23\).
The average of a positive number, its square and 3 is 5. Find the number.
A bus covers a distance of first 50 km in 40 minutes, next 50 km at a speed of 2 km per minute and the next 30 km at a speed of 1.0 km per minute. What is its average speed during the entire journey?
Male and female students from a particular subject took a class test. The average score of male students was 70 and of female students was 83. The class average however was 76. Determine the ratio of males to females in the class ?