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primary 6 | Science
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Linda kok
Linda Kok

primary 6 chevron_right Science chevron_right Singapore

Please help with a model

Date Posted: 1 year ago
Views: 161
eddyzhao912
Eddyzhao912
7 months ago
The question is how many more girls than boys in room Y. Let the number of boys in room X is B. Then the number of girls in room X is B+30. The number of boys in room Y is B+10. The total number of children in room Y is B+(B+30)+60=2B+90 So the number of girls in room Y is (2B+90)-(B+10)=B+80. So there were (B+80)-(B+10)=70 girls than boys in room Y.

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AC Lim
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Louis Lee
Louis Lee
11 months ago
They Asked how many more girls than boys, so the answer should be 80, 3