Omg ! Sc Maths Helllp (1 Viewer)

[is2buddaflies]

http://boardofstudies.nsw.edu.au/schoolcertificate/sc2003/pdf_doc/mathematics_sctest_03_s2.pdf

Q56 stuck how do yu do the Q???
working out woud be helpful

 

[keenith]

First bite -10% : 100-10=90
Second bite -10% : 90-9

so A hope i helped

 

[-tal-]

First bite -10% : 100-10=90
Second bite -10% : 90-9

so A hope i helped

I'm under the impression that it's C.

Since the second bite is the same as the first (10% of the original bar), the percentage eaten would be 1/9 * 100 = 11%

 

[Dyldodeath]

yea same
pretty sure it is C

 

[keenith]

My first bite of a chocolate bar removed 10% of the bar. My second bite was the
same size as my first.

Approximately what percentage of the remaining bar did I eat with my second
bite?

so it would have to be 10% of 90 is its

A 9%

 

[xV1P3R]

My second bite was the same size as my first.

I was under the impression that size meant value rather than percentage.
Say the chocolate is 100
1st bite took out 10 of that 100
2nd bite takes out 10 again but now out of the 90

 

[keenith]

I was under the impression that size meant value rather than percentage.
Say the chocolate is 100
1st bite took out 10 of that 100
2nd bite takes out 10 again but now out of the 90

i already took that into account the original bite was 10% so 10% of the remaining would be

90-(10%)= that 10% is 9% so A is the answer

 

[Hao368]

i think viper was talking about like actually '10' rather than 10%

*edit*: forgot to add. so the 10% of the first bar would be roughly 10/90 of the second bar. making it 11% like -tal- had said

 

[rolror88]

I agree with both tal and hao, the answer should be C.

 

[keenith]

the question was

My first bite of a chocolate bar removed 10% of the bar. My second bite was the
same size as my first.

Approximately what percentage of the remaining bar did I eat with my second
bite?


look a the bold and underline word REMAINING meaning after the 1st bite so 10% of 90 which is 9

therefore the answer shoud be A 9%

 

[dwarven]

I'm under the impression that it's C.

Since the second bite is the same as the first (10% of the original bar), the percentage eaten would be 1/9 * 100 = 11%

its C

http://www.boardofstudies.nsw.edu.au/schoolcertificate/sc2003/pdf_doc/sc_maths_answers_03.pdf

 

[keenith]

dammit i am too stubborn

http://www4.boardofstudies.nsw.edu....swer=A&courseID=5010&testQuestionID=149000057

 

[Hao368]

mm i can't open pdf files so ill try give an example
say the first bar was 100grams. if he ate 10%, the amount would be 10 grams.
now, the second bite is also 10 grams. but as a percentage of the remaining bar (which is 90 grams now), it's actually 10/90 (11%)

*edit* hahah late reply by me =\

 

[is2buddaflies]

the answer is C

 

[keenith]

mm i can't open pdf files so ill try give an example
say the first bar was 100grams. if he ate 10%, the amount would be 10 grams.
now, the second bite is also 10 grams. but as a percentage of the remaining bar (which is 90 grams now), it's actually 10/90 (11%)

*edit* hahah late reply by me =\

at least you got it right =='