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The average of five even numbers is 72. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
25 students go for a picnic. 10 of them spent Rs. 64 each on their food and rest spent Rs.4 more than the average expenditure of all 25. What was the to...
A student's average score across five subjects is 80. If the scores in four subjects are 78, 85, 82, and 88, what is the average of the top three highes...
In a classroom, the average score of 15 students on a test is 44 points. If 5 new students, each with an average score of 'x' points, join the class, an...
The average marks of all the students decreased by 2 when it was found that marks of one of the student were wrongly interpreted as 80 instead of 40. Fi...
There are 40 elements in a data set and their average is 75. If every element is scaled by a factor of 12, compute the new average.
A car covers a distance of 60 km at a consistent speed. If the car's speed is increased by 8 km/h, it would take 2 hours less to travel the same distanc...
The average of five positive numbers is 56. If the first number is three-fourth of the sum of the last four numbers, then the average of the last four n...
