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The average age of x and y is 18 years. If z is equal to 9 years the average of x, y and z is -
5Q:
The average age of x and y is 18 years. If z is equal to 9 years the average of x, y and z is -
- 124 yearstrue
- 215 yearsfalse
- 318 yearsfalse
- 420 yearsfalse
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