Maths quiz

[Joan]

What's our nerd quotient?

(yes, I have answers)

[Markymark]

D,d,c,e,d,d

[Iris]

Give me a proof for Q3. The rest are obvious.

[Markymark]

Give me a proof for Q3. The rest are obvious.

QOS is 145 so poq is 35 (180 less). That means tos is the same.
Sor is 180 less por so is 60

Tov is 180 less tos less sor. 180 - 35 -60 = 85

[JohnToo]

What is that from? I’m guessing it’s KS3-ish level? It’s labelled “senior division” and it seems a bit easy to be the a harder option for GCSEor equivalent?