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Question
primary 6 | Maths
| Ratio
3 Answers Below
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Date Posted: 3 years ago
Views: 416
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How did u get $120 ？
The initial ratio is 5:4
So we will understand it as 5units : 4units
5u-20 (Alice spent $20)
4u+10 (Bernice received $10)
And the amount they have became the same.
So 5u-20 = 4u+10
Each unit is $30
Hence if Bernice initially had 4units of $30, 4x30 =$120
So we will understand it as 5units : 4units
5u-20 (Alice spent $20)
4u+10 (Bernice received $10)
And the amount they have became the same.
So 5u-20 = 4u+10
Each unit is $30
Hence if Bernice initially had 4units of $30, 4x30 =$120
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