Zhang Jia Hao's answer to A's Primary 6 Maths question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
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:
7 years ago
Understood :)
360 Tutoring Program