- Total value of 2 items
- Difference between 2 item's totals
- Unit Difference between 2 items
- Multiples of 1 item compared with another


This question type is made famous during the 2021's Math PSLE exams.
The "Helen and Ivan" question.
2 items of different quantities and value are split into 2 groups containing same number of items. The individual value difference a between 2 items and the total value of one of the group [ containing different quantities of 2 items ] are given.
This is a P6 PSLE Paper 2 question.
Calculator usage is allowed.
How much did Ivan spend on all his pencils and notepads?

This question is a variation of a tough P5/P6 Paper 2 high value question.
(A slightly more complex version of this question can be found here. )
2 different item of different quantities and individual values.
Only 4 information/numbers are given,
Namely
1) Total value of both items
2) Ratio between the quantity of both items
3) Individual value difference between both items
4) Total value difference between both items
Calculator usage is allowed.
