Average score of Rahul, Manish and Suresh is 63. Rahul's score is 15 less than Ajay and 10 more than the average scores of Rahul, Manish and Suresh, what is he sum of Manish's and Suresh's scores ?

A.  120

B.  111 

C.  117

D.  Cannot be determined

E.   None of these

If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is:

A. 53.33

B. 54.68

C. 55

D. None of these

Find the average of the following set of scores:

253, 124, 255, 534, 836, 375, 101, 443, 760

A. 427

B. 413

C. 441

D. None of these

The average of four consecutive numbers A, B, C and D respectively is 49.5. What is the product of B and D?

A. 2499

B. 2352

C. 2450

D. 2550

The average weight of 21 boys was recorded as 64 kgs. If the weight of the teacher is added, the average increased by one kg. What was the teacher's weight?


A. 86 kgs

B. 64 kgs

C. 72 kgs

D. 98 kgs

The average weight of all 11 players of Indian cricket team is 50 kg. If the average of first six lightest weight players is 49 kg and that of the six heaviest players is 52 kg. The average weight of the player who lies in the sixth position in the list of players when all the 11 players are arranged in the order of increasing or decreasing weights is :

A. 56 kg

B. 52 kg

C. 51 kg

D. 53 kg

Three years ago the average age of A and B was 18 years with the joining of C now, the average becomes 22 years. How old is C now?

A. 24  years                                          B. 30 years

C. 28 years                                           D. None of these

The ratio of the ages of a man and his wife is 4:3. After  4 years, this ratio will be 9:7. If at the time of marriage, the ratio was 5:3, then how many years ago were they married?

A. 8 years                                             B. 10 years

C. 12 years                                           D. 15 years

The average of five consecutive odd numbers A, B, C, D and E respectively in ascending order is 37. What is the product of B and D?

A. 1365                        B. 2035

C. 1935                        D. 1585

The average of five numbers is 40.8. The average of the first and the second number is 46. The average of the fourth and fifth number is 37. What is the third number?

A. 36                            B. 34

C. 38                            D. 32

The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches is 42 then find the average for last four matches?

A. 33.25                            B. 33.5

C. 34.25                            D. 35

The average age of 24 boys in a class is 11. When the teacher's age is included the average increases by one. What is the age of the teacher?

A. 34 years                    B. 42 years

C. 48 years                    D. 36 years

The sum of seven consecutive numbers is 168. What is sum of the first and last numbers?

A. 58                        B. 49.

C. 48                        D. 47

The average of 7 consecutive number is 20. The largest of these number is:

A. 20                     B. 22

C. 24                     D. 23

The average of five consecutive off numbers is 61. What is the difference between the highest and lowest numbers?

A. 2                        B. 5

C. 8                        D. None 

Find the average of first 40 natural numbers:

A. 19.1                     B. 21.5

C. 22.5                     D. 20.5

Average

Average is also called the mean of the quantities.

Average  =Sum of quantities / Number of quantities.