Q.1
27,79,62,57,40,84,29,71 and 80 scores of students in a particular class 9 .What is the mean of scores?

Q.2
M is the average of the two numbers. If one number is N out of two then what is second number ?

Q.3
The average of 7 sequential number is 20 and find the largest number out of them ?

Q.4
Three numbers respectively 4: 5: 6 ratio and the average is 25. Find the greatest number?

Q.5
A batsman scores 76 runs in his 15 th innings .As a result  his average increase by 2 runs . find the new average of batsman after 15th innings?

Q.6
Average of five numbers is 27. A number of them can be removed, the average is 25. What is the number which is replaced?

Q.7
the averageof 50 points is 30. If we remove  these two points 35 and 40,  than what will be average of remaing number ?

Q.8
average of X numbers is ${y}^{2}$ And  the average of  y of numbers is ${x}^{2}$. Then what  is the average of (x + y) numbers?

Q.9
the average of four consecutive odd numbersis 106. Which is the third number in ascending order?

Q.10
The average weight of 100 students in a class is 46 kg . The average weight of boys is 50 kgand girls is 40 kg . What is the number of boys?

Q.11
The average of 25 numbers, is 18. The average of  first 12 numbers  is 14 and the last 12 numbers average is 17 then what would be the 13th number?

Q.12
The average of 11 integers, is 30. If they are held, in a sequence then the average of first five numbers is 25 and the average of last 5 numbers is 28 then what is the sixth number ?

Q.13
The average of 5 numbers is 46,out of them the average of first four number is 45 then, what is the fifth number?

Q.14
The average of 20 numbers is 12. Average of the first 12 numbers is 11, while the average for the next seven  is  10, so the final number is?

Q.15
The average monthly income of X and Y is Rs 5050. The average monthly income of Y and Z is 6250 and the average monthly income of X and Z is 5200 then what will be the monthly income of X ?

Q.16
Average age of a couple before 4 years , at the time of their marriage was 27 years. Now the average age of the couple including their new born babay is 21 years .find the present age of baby ?

Q.17
To determine the average of five numbers a student by mistakenly write a number 54 instead of instead of 45, , consequently, the average of five numbers got 52. What is the correct average of the numbers ?

Q.18
What is the average of the first 9 prime numbers?

Q.19
What is the average of first five multiples of 3 ?

Q.20
What is the average of the first 50 natural numbers?

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