The average of first three number is double of the fourth number. If the average of all the four numbers is 12. Find the 4th number. |
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a) |
|
b) |
48 |
c) |
7 |
d) |
|
The average of first three number is double of the fourth number. If the average of all the four numbers is 12. Find the 4th number. |
|||||||
a) |
|
b) |
48 |
c) |
7 |
d) |
|