Question 17
The operator $\circledast$ gives $2\circledast4=44$, $5\circledast7=104$, $1\circledast5=28$, $7\circledast10=146$. Find $6\circledast12$.
Use the simplest rule of the form “a fixed multiple of the first number plus a fixed multiple of the second”.
Answer format: enter one whole number without units.
Use the simplest rule of the form “a fixed multiple of the first number plus a fixed multiple of the second”.
Answer format: enter one whole number without units.