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Question
primary 5 | Maths
| Fractions
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Please help???
Date Posted: 5 years ago
Views: 402
Realise that the total number of bracelets remained the same after exchanging.
Before : the ratio is 5 : 11
Total units = 5 + 11 = 16
After : the ratio = 3 : 5
Total units = 3 + 5 = 8
Since number of bracelets remained the same, make the number of units the same.
8 x 2 = 16
So 3 : 5 = 6 : 10
From 5 : 11→ 6 : 10
There is a increase of 1 unit for gold bracelets, and a decrease of 1 unit for jade bracelets.
So 1 unit = 8 bracelets
Number of gold bracelets at first
= 5 units
= 5 x 8
= 40
Before : the ratio is 5 : 11
Total units = 5 + 11 = 16
After : the ratio = 3 : 5
Total units = 3 + 5 = 8
Since number of bracelets remained the same, make the number of units the same.
8 x 2 = 16
So 3 : 5 = 6 : 10
From 5 : 11→ 6 : 10
There is a increase of 1 unit for gold bracelets, and a decrease of 1 unit for jade bracelets.
So 1 unit = 8 bracelets
Number of gold bracelets at first
= 5 units
= 5 x 8
= 40
Hi Jessica, I had uploaded a similar question of the above question with steps by steps video presentation on YouTube https://youtu.be/ug8WQtsGlbE , you can learn from there to improve your math.
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Take.. total number of bracelets are equal for before and after.
Total shoul be 16u
Then work from there...
Total shoul be 16u
Then work from there...
Date Posted:
5 years ago
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