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primary 6 | Maths
| Fractions
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q1-3
Date Posted: 4 years ago
Views: 204
3.
b4 cut
short: 1u
long: 34-1u
34-1u = 1u + 8
1u = 13
short: 13 m
long: 21 m
after cut
short: 13 - 1u
long: 21 - 1u
13 x (13 - 1u) = 8 x (21 - 1u)
1u = 1/5
length cut = 1/5 m or 0.2 m
.
.
.
* cannot read the other qns clearly
.
b4 cut
short: 1u
long: 34-1u
34-1u = 1u + 8
1u = 13
short: 13 m
long: 21 m
after cut
short: 13 - 1u
long: 21 - 1u
13 x (13 - 1u) = 8 x (21 - 1u)
1u = 1/5
length cut = 1/5 m or 0.2 m
.
.
.
* cannot read the other qns clearly
.
See 1 Answer
done
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These three questions have a common theme: constant difference. Whenever you add or subtract the same number from two things, the difference remains the same. For example for age, everyone adds 1 year to their age, 7 becomes 8 and 11 becomes 12. The difference remains as 4 years.
Date Posted:
4 years ago
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