justin's answer to Moritz Huss's Primary 5 Maths Singapore question.
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Hi I've posted the answer to your question. For any queries, do let me know. Thanks.
Date Posted:
3 years ago
Dear Justin, Thank you for the help, however I do not understand how you arrive at 1 unit of boys being equal to 36 and 1 unit of girls being equal to 12. Pleas clarify. Thank you.
From the first equation, B = 72 - 3G. Substitute this into the second equation to get 5(72-3G) + 5G = 240 and solve for G. Then use the value of G and find B in first equation.
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