Hi,

My child is practicing as many maths papers as possible. This question came up in a paper for the city girls school. I’m finding it challenging(im not a maths person) any help would be greatly appreciated
what method should be used? Trial and error? Or algebra?
Paper below!
Question 48(last one)
https://www.clsg.org.uk/attachments/download.asp?file=315&type=pdf

Banana person

This is the way I tackled it:

Since circle+triangle=square, you can substitute a square in place of (circle+triangle) in line 3 to give circle+square=hexagon.

From line 2, you can then deduce that circle=square because we now have circle+square=hexagon in line 3 as well as square+square=hexagon in line 2. In other words, adding a circle to a square has the same effect (resulting in a hexagon) as adding a square to a square.

From line 1, now we know that circle=square, that must mean that triangle=0 because adding triangle to a circle doesn't change its value.

(which means that circle=1, square=1 and hexagon=2)

Ahh i see..
Thanks

Id use substitution knowing what a square equals, etc.

Hello all

I tried to get my daughter to complete the paper above. Does anyone know where I can get the answers?

I would really appreciate it.

Post any questions you are unsure of and I'll check them.

Thank you Guest55 I will have a look and get to you.