Solution

35346

Problem / game
Grandpa's Rock Cakes Back to problem
First name
Nathaniel
School
Roslyn
Country
New Zealand
Age
10

We worked out that the two closest guesses were 5 040g and 5 060g. If we added 70 grams we would have a score already guessed so we knew that we had to take it away. We worked out two different numbers and decided on the 4 970g as the weight.