| 1 |
To find the sum of given values whose average is knowsn, the following formula is used. |
sum of item = average of item + number of item
sum of item= average of item-number
sum of items = average of item x number of items
None of these
|
| 2 |
If a student got 19,21,22,24,and 19 marks is different subjects is the monthly test. his average marks will be. |
19
21
22
25
|
| 3 |
The average of a nuber of items can be found by. |
Dividing sum of items by nuber of items
Adding sum of items and numebr of items
Multiplying sum of items by number of itmes
Subtracting sum of items from number of item
|
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