Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Ratio
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Help
Date Posted: 1 month ago
Views: 115
See 2 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps
Date Posted:
1 month ago
May i know why 7u - 4u is 57? Isnt stated -57?
Mmm ...
At 1st is 7u
After gave away 57
Left 4u
So ...
Gave away 3u
Therefore, 3u = 57
At 1st is 7u
After gave away 57
Left 4u
So ...
Gave away 3u
Therefore, 3u = 57
Logically thinking... If you work on F.
At 1st is 3u
After received 57
Have 6u
So increased by 6u-3u = 3u
3u = 57
1u= 19
.
.
.
.
At 1st is 3u
After received 57
Have 6u
So increased by 6u-3u = 3u
3u = 57
1u= 19
.
.
.
.
Thank you! Understand now!
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
In this problem, the transfer is within themselves. When this happens, total amount before and after transfer REMAINS THE SAME.
The total before is 10 units. The total after is 5 units. So we make 5 units x2=10 units.
Each of the unit in after ratio has to be multiplied by 2. Now, after ratio is 4 : 6.
At first, siti had 7 units, now 4. So she gave 3 units to fauziah. Likewise, at first fauziah had 3 units. After receiving from siti, she now has 6 units, which means she received 3 units.
3 units= 57
Hope this helps.
The total before is 10 units. The total after is 5 units. So we make 5 units x2=10 units.
Each of the unit in after ratio has to be multiplied by 2. Now, after ratio is 4 : 6.
At first, siti had 7 units, now 4. So she gave 3 units to fauziah. Likewise, at first fauziah had 3 units. After receiving from siti, she now has 6 units, which means she received 3 units.
3 units= 57
Hope this helps.
Date Posted:
1 month ago
Yes. Helped a lot!
360 Tutoring Program