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Question
primary 5 | Maths
| Fractions
One Answer Below
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Pls advise on the solution. Thanks!
Date Posted: 5 years ago
Views: 359
at first
M: 20u
E: 20u
after
M: 5u
E: 4u
5u = 4u + 3
u = 3
at first, Eve has 60 roses
...
M: 20u
E: 20u
after
M: 5u
E: 4u
5u = 4u + 3
u = 3
at first, Eve has 60 roses
...
See 1 Answer
For such questions that start with both persons having an equal number of something, change the denominator to be the same.
Eve gave away : 4/5 = 16/20
1 - 16/20 = 20/20 - 16/20 = 4/20
So Eve had 20 units of roses at first. She gave 16 units away and had 4 units left.
Mary gave away : ¾ = 15/20
1 - 15/20 = 20/20 - 15/20 = 5/20
So Mary had 20 units of roses at first. She gave 15 units away and had 5 units left.
As you can see both had a equal number of units of roses at first.
5 units - 4 units = 1 unit
In the end, Mary has 1 unit more roses than Eve.
So 1 unit = 3 since Mary had 3 roses more than Eve in the end.
Roses that Eve had at first = 20 units
= 20 x 3 = 60
Eve gave away : 4/5 = 16/20
1 - 16/20 = 20/20 - 16/20 = 4/20
So Eve had 20 units of roses at first. She gave 16 units away and had 4 units left.
Mary gave away : ¾ = 15/20
1 - 15/20 = 20/20 - 15/20 = 5/20
So Mary had 20 units of roses at first. She gave 15 units away and had 5 units left.
As you can see both had a equal number of units of roses at first.
5 units - 4 units = 1 unit
In the end, Mary has 1 unit more roses than Eve.
So 1 unit = 3 since Mary had 3 roses more than Eve in the end.
Roses that Eve had at first = 20 units
= 20 x 3 = 60
Thanks for the solution! Much appreciated! :)
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