maths mate term 1 #sheet 1problem

Q; 23 which two weights need to be swapped to balance the scales

problem; I think that this problem is about measurements and numbers

clarify: [nothing to be clarified] e.g

find the picture: swap 2 weights so both sides weigh the same

1. I added both sides to see how much each side weighed. I found that the left side weighed 15kg and the Right side weighed 12kg.

2. I used trial and error  by swapping 4kg and 5kg. I found that the Left side now weighed 17kg and the Right side weighed 11kg.

3. This obviously was not correct.

4. I then swapped 9kg with 7kg. The Left side now weighs 14kg and the Right side weighs 14kg. Both sides now balance.

Summary: The strategy i used was guess check and improve

another problem solved by buzzbee 🙂

 


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