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Primary 4 | Maths
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Date Posted: 4 years ago
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1boy fold 2/3 paper crane. Hope this helps
Date Posted:
4 years ago
Another method for solution:
1 girl —> 2 paper cranes
3 boy —-> 2 paper cranes
So, 1 boy —> 2/3 paper cranes.
Total = 100
Total boy and girl = 80
Assume all are girl fold for paper cranes
Total = 80 x 2 = 160
Shortfall = 160 - 100 = 60
Difference paper crane fold by 1 girl and 1 boy = 2 -2/3 = 4/3
Therefore, number of boy
= 60 /(4/3)
= 60 x 3/4
= 45
Girls= 80 - 45 = 35.
Hope this helps too
1 girl —> 2 paper cranes
3 boy —-> 2 paper cranes
So, 1 boy —> 2/3 paper cranes.
Total = 100
Total boy and girl = 80
Assume all are girl fold for paper cranes
Total = 80 x 2 = 160
Shortfall = 160 - 100 = 60
Difference paper crane fold by 1 girl and 1 boy = 2 -2/3 = 4/3
Therefore, number of boy
= 60 /(4/3)
= 60 x 3/4
= 45
Girls= 80 - 45 = 35.
Hope this helps too
Thks
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