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Question
primary 5 | Maths
| Fractions
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Date Posted: 5 years ago
Views: 309
Adults = 1 unit
Boys + Girls = 2 units
Total = 3 units
Adults + Boys = 2 units
Girls = 3 units
Total = 5 units
We know that the total number of people doesn't change. So we make the number of units the same.
Adults = 1 unit → x 5 = 5 units
Boys + Girls = 2 units → x 5 = 10 units
Total = 3 units → x 5 = 15 units
Adults + Boys = 2 units → x 3 = 6 units
Girls = 3 units → x 3 = 9 units
Total = 5 units → x 3 = 15 units
So Adults = 5 units, Girls = 9 units
Difference = 4 units
Since there were 400 more girls than adults,
400 = 4 units
1 unit = 400 ÷ 4 = 100
Number of people at the stadium
= 15 units
= 100 x 15
= 1500
Boys + Girls = 2 units
Total = 3 units
Adults + Boys = 2 units
Girls = 3 units
Total = 5 units
We know that the total number of people doesn't change. So we make the number of units the same.
Adults = 1 unit → x 5 = 5 units
Boys + Girls = 2 units → x 5 = 10 units
Total = 3 units → x 5 = 15 units
Adults + Boys = 2 units → x 3 = 6 units
Girls = 3 units → x 3 = 9 units
Total = 5 units → x 3 = 15 units
So Adults = 5 units, Girls = 9 units
Difference = 4 units
Since there were 400 more girls than adults,
400 = 4 units
1 unit = 400 ÷ 4 = 100
Number of people at the stadium
= 15 units
= 100 x 15
= 1500
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