AC Lim's answer to lisaa's Primary 6 Maths Ratio Singapore question.
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P:J = 5:3
5u + 3u = 8u
8u = 40
1u = 5
At 1st P = 5×5 =25
J = 3 × 5 =15
After P = 25-7 =18
J = 15+7 =22
New ratio P:J = 18:22 = 9:11
Hope this helps
5u + 3u = 8u
8u = 40
1u = 5
At 1st P = 5×5 =25
J = 3 × 5 =15
After P = 25-7 =18
J = 15+7 =22
New ratio P:J = 18:22 = 9:11
Hope this helps
Date Posted:
4 years ago
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