Solution

159525

First name
Oliver
School
Tanglin Trust Singapore
Country
Age
12

The row where there are only apples adds up to twelve. 12 divided by four is 3. So one apple=3.
The row which equals to 10 is made of 2 apple and 2 bananas. Two apples=6 and so the remaining two bananas are worth 2 each.
So one banana=2.
The row where there are two bananas and a plum adds up to 7 without the pluma and adds up to twenty in total.
So the plum is worth 13
Then in the row where there are two plums, an apple and a cherry, the plums and the apple add up to 29 while the whole row is worth 36. 36-29=7 and therefore a cherry is worth 7.