Sum of ages of 60 students is 900 years such that the average age of 25 of them is 10 years and average age of another 25 of them is 14 years. Find the ...
The average of the first 7 non-zero multiples of 18 is:
The mean weight of 'w' students in a classroom is 42 kg. When the class teacher, weighing 61.5 kg, is added to the group, the average weight increases b...
- A student calculates the average of five two-digit numbers. If one of them is reversed and the new average increases by 9, and all the numbers are consecut...
If the average of s number is r⁴ and the average r number is s⁴, then find the average of all r+ s numbers
The average weight of 20 boys is 48 kg. However, the weights of three boys, originally 46 kg, 44 kg, and 38 kg, were incorrectly ...
The average of six numbers is 66. When two more numbers are included, the average increases by 2. Find the average of the numbers included.
- The average speed of a car over the first 4 hours is 50 km/h. If the car needs to maintain an average speed of 60 km/h over a total of 8 hours, what should...
There are three distinct numbers ‘u’, ‘v’ and ‘w’. If, u = 240, (u + v) = 540 and (w – v) = 60, then find the average of u, v and w.
...The average score of 28 players in a team is 73. After two new players with scores (x + 8) and (x - 6) joined, the average score decreased by 2 points. ...
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