Average 20 numbers is ‘x’. If the average of first 12 numbers is 64.5 while average of last 5 numbers is 84.8 and 13th, 14th...
The average of 12 numbers is 25. If one number is removed, the average of the remaining 11 numbers becomes 24. Find the removed number.
The average number of balloons distributed among five kids is 9. If each kid received 1 balloon more than the kid before, then find the highest number o...
The average of 18 numbers is 12. If each number is increased by 2, what will be the mean of the new set of numbers?
- 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...
In a Math exam, the average score of 50 students is 68. The ratio of boys to girls in the class is 3:2. If the average score of the boys is 70, what is ...
The average of 5 numbers is 24. If one number is removed, the average of the remaining 4 numbers becomes 21. Find the number that was removed.
In an examination the average marks of Rohit is 65. If he got 15 more marks in science and 25 more marks in maths then his average would have been 70. F...
The average age of a group of 8 friends is 30 years. If one of them leaves, the average becomes 29. Find the age of the friend who left.
Sum of ages of 55 team members is 1220 years. The average age of 20 of them is 19 years and the average age of another 15 of them is 20 years. Find the ...
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