Problems on Average difference between numbers

Problems on Average difference between numbers

#### What is the average of the numbers 8, 12, 15, 10, and 20? 1. [ ] 14 2. [ ] 15 3. [x] 13 4. [ ] 12 #### If the average of 10, 12, x, 18, and 25 is 17, what is the value of x? 1. [ ] 14 2. [ ] 16 3. [ ] 18 4. [x] 20 #### If the average of 5 numbers is 40, and a new number 40 is added to the set, what is the new average? 1. [x] 40 2. [ ] 52.5 3. [ ] 53.75 4. [ ] 55 #### What is the average of the numbers 8, 12, 15, 9, and 16? 1. [ ] 14 2. [ ] 15 3. [ ] 13 4. [x] 12 #### What is the average of the numbers 8, 14, 16, 12, and 20? 1. [x] 14 2. [ ] 15 3. [ ] 13 4. [ ] 12