Zhang Jia Hao's answer to A's Primary 6 Maths question.
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Lets call Hadi D.
Person A, B, C and D.
The average of A,B and C is 39
While the average of all of them is 39.4
Now you have 2 equations. You can find Hadi's weight
Person A, B, C and D.
The average of A,B and C is 39
While the average of all of them is 39.4
Now you have 2 equations. You can find Hadi's weight
Date Posted:
6 years ago
Understood :)
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