J Vishnu Chithan's answer to Shreya's Secondary 2 Maths Singapore question.
2x and 4y must sum to 7 dollars no matter what x and y are.
So can have a number of x and y values summing up to 7 dollars.
Note that answer for part b is fixed .
Vishnu, thank you very much for your help. Fm Shreya
Welcome Shreya. Hope you understood. Let me know if you require more help :)
Thank you Vishnu
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