Q&A - P5 Math
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correct, but can you explain how u derive from that?
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Perhaps a picture might help....
![](\"http://i50.tinypic.com/sltv0k.jpg\")
http://i50.tinypic.com/sltv0k.jpg\">
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The ratio of the height of a stick to the height of an umbrella is 4:5. The umbrella is 40 cm. What is the total height of the stick and umbrella altogether?
Help needed… -
Jamesbond:
HiThe ratio of the height of a stick to the height of an umbrella is 4:5. The umbrella is 40 cm. What is the total height of the stick and umbrella altogether?
Help needed...
I guess this is a MCQ.
5 units ----- 40
1 unit ------ 8
9 units ----- 72 (total height of the stick and umbrella altogether)
Best wishes -
Sorry for my interruption
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tianzhu:
Thx Tianzhu..Yes it's an MCQ. My ans was also 72. But the ans sheet said it was 90...So I got confused.
HiJamesbond:
The ratio of the height of a stick to the height of an umbrella is 4:5. The umbrella is 40 cm. What is the total height of the stick and umbrella altogether?
Help needed...
I guess this is a MCQ.
5 units ----- 40
1 unit ------ 8
9 units ----- 72 (total height of the stick and umbrella altogether)
Best wishes -
There were 12 more boys than girls at a camp. Half of the girls and 36 boys wore spectacles. The number of boys and the number of girls who wore spectacles were the same. How many children were at the camp?
Pl help… -
Jamesbond:
HiThere were 12 more boys than girls at a camp. Half of the girls and 36 boys wore spectacles. The number of boys and the number of girls who wore spectacles were the same. How many children were at the camp?
Pl help....
Half of the girls and 36 boys wore spectacles. The number of boys and the number of girls who wore spectacles were the same.
Half of the girls ------ 36
Total number of girls ------- 72
There were 12 more boys than girls at a camp.
Number of boys ------ 84 (72+12)
Number of children@camp ------- 72 + 84 ------ 156
Best wishes -
Jamesbond:
Hi
Thx Tianzhu..Yes it's an MCQ. My ans was also 72. But the ans sheet said it was 90...So I got confused.
The correct answer is 72.
You may wish to confirm the answer with your teacher.
Best wishes -
tianzhu:
OMG.....I can't believe it. Rosyth SA1 2011...same paper....but my ans sheet show diff ans.
HiJamesbond:
Thx Tianzhu..Yes it's an MCQ. My ans was also 72. But the ans sheet said it was 90...So I got confused.
The correct answer is 72.
You may wish to confirm the answer with your teacher.
Best wishes
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