J's answer to gxcc1's Primary 5 Maths Percentage Singapore question.
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Children : 80%
Adults : 100% - 80% = 20%
Difference = 80% - 20% = 60%
100% → 6000
60% → 60/100 x 6000 = 3/5 x 6000 = 3600
Or
100% → 6000
1% → 6000 ÷ 100 = 60
60% → 60 x 60 = 3600
There were 3600 more children than adults.
Adults : 100% - 80% = 20%
Difference = 80% - 20% = 60%
100% → 6000
60% → 60/100 x 6000 = 3/5 x 6000 = 3600
Or
100% → 6000
1% → 6000 ÷ 100 = 60
60% → 60 x 60 = 3600
There were 3600 more children than adults.
Date Posted:
4 years ago
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