41). Find the average of the following set of scores 253, 124, 255, 534, 836, 375, 101, 443, 760
| A). 427 |
| B). 413 |
| C). 141 |
| D). 409 |
|
42). What will be the average of even numbers between 11 and 63?
| A). 37.5 |
| B). 47 |
| C). 42 |
| D). 37 |
|
43). Find average of all prime numbers between 60 and 80?
| A). 72 |
| B). 70.2 |
| C). 74 |
| D). 73.6 |
|
44). Calculate the average of the cubes of first five natural numbers?
| A). 55 |
| B). 65 |
| C). 45 |
| D). 35 |
|
45). The average of 8 numbers is 14. The average of 6 of these numbers is 16. What is the average of the remaining two numbers?
| A). 12 |
| B). 6 |
| C). 8 |
| D). 10 |
|
46). If the algebraic sum of deviations of 20 observations measured from 23 is 70, mean of these observations would be
| A). 24 |
| B). 25 |
| C). 26 |
| D). None of the above |
|
47). Eight consecutive numbers are given. If the average of the two numbers that appear in the middle is 6, then the sum of the eight numbers is
| A). 36 |
| B). 48 |
| C). 54 |
| D). 64 |
|
48). The average of 4 consecutive even numbers is 27. What is the greatest number?
| A). 28 |
| B). 26 |
| C). 32 |
| D). 30 |
|
49). The average age of 30 girls is 13 yr. The average of first 18 girls is 15 yr. Find out the average age of remaining 12 girls.
| A). 12 yr |
| B). 10 yr |
| C). 16 yr |
| D). 10.5 yr |
|
50). The average of 50 numbers is 38. If the two numbers 45 and 55 are not considered, what will be the average of remaining numbers?
| A). 36.5 |
| B). 37 |
| C). 37.5 |
| D). 37.52 |
|
