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Question
primary 6 | Maths
| Measurement
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For part b) ans is 6/0.5 = 12min
How to explain this part to a child?
Date Posted: 7 months ago
Views: 78
Use level rise in every 1 min.
Tank A rise 2cm in 1 min
Tank B rise 1.5 cm in 1 min.
Therefore, every 1 min tank A is closer to tank B by 0.5 cm
So, tank B at 1st is 6cm
0.5 cm closer ↣1 min
6.0 cm ↣ 6÷ 0.5 = 12 mins
Let start with
0 min, tank A = 0cm , B = 6cm diff= 6cm
1 min, tank A = 2cm , B = 7.5cm diff= 5.5cm
2 min, tank A = 4cm , B = 9cm diff= 5cm
3 min, tank A = 6cm , B = 10.5cm diff= 4.5cm
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12 min, tank A = 24cm , B = 24cm diff= 0 cm = same height.
Tank A rise 2cm in 1 min
Tank B rise 1.5 cm in 1 min.
Therefore, every 1 min tank A is closer to tank B by 0.5 cm
So, tank B at 1st is 6cm
0.5 cm closer ↣1 min
6.0 cm ↣ 6÷ 0.5 = 12 mins
Let start with
0 min, tank A = 0cm , B = 6cm diff= 6cm
1 min, tank A = 2cm , B = 7.5cm diff= 5.5cm
2 min, tank A = 4cm , B = 9cm diff= 5cm
3 min, tank A = 6cm , B = 10.5cm diff= 4.5cm
.
.
.
.
12 min, tank A = 24cm , B = 24cm diff= 0 cm = same height.
Thank for the detail explanation. I got it
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Hope this helps
Date Posted:
7 months ago
Thank you!!
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