Chocolate fraction Question
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Chocolate fraction Question
I need help with this one .
I have a big bar if chocolate .
I eat 1/4 on Saturday and 1/2 of what's left on Sunday .
I take the rest of it to School on Monday and give 1/3 to my friend.
I eat the rest myself on Monday.
What Fraction of the big bar did I eat on Monday?
I have a big bar if chocolate .
I eat 1/4 on Saturday and 1/2 of what's left on Sunday .
I take the rest of it to School on Monday and give 1/3 to my friend.
I eat the rest myself on Monday.
What Fraction of the big bar did I eat on Monday?
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Re: Chocolate fraction Question
Answer is 1/4
I drew a picture of the bar and shaded areas as they were 'eaten'.
Visually an easy question (assuming I got it right )
I drew a picture of the bar and shaded areas as they were 'eaten'.
Visually an easy question (assuming I got it right )
Re: Chocolate fraction Question
faheej wrote:I need help with this one .
I have a big bar if chocolate .
I eat 1/4 on Saturday and 1/2 of what's left on Sunday .
I take the rest of it to School on Monday and give 1/3 to my friend.
I eat the rest myself on Monday.
What Fraction of the big bar did I eat on Monday?
Or with numbers:
On Sunday I ate half of 3/4. Half of 3/4 will remain. This is 3/8.
On Monday I gave 1/8 to my friend ( this is one third of 3/8). I ate the remaining chocolate which is 2/8. This simplifies to 1/4.
Nice fraction practice question. Where is it from?
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Re: Chocolate fraction Question
I eat 1/4 on Sat --> portion left on Sat is 3/4
Then I eat 1/2 on Sun of what's left --> i.e. 1/2 of 3/4 =3/8 left on Sunday
Then I gave 1/3 to my friend --> 2/3 of left on Sun i.e. 3/8
2/3 x 3/8
1/4
But you can get the same answer quickly (saving you couple of seconds I guess ) if you focus on what's left after eating on Sunday and do times portion eaten.
3/4 x 1/2 x 2/3 = 1/4 answer
[Cancel 2 in numerator with 2 in denominator and similarly 3 with 3]
Then I eat 1/2 on Sun of what's left --> i.e. 1/2 of 3/4 =3/8 left on Sunday
Then I gave 1/3 to my friend --> 2/3 of left on Sun i.e. 3/8
2/3 x 3/8
1/4
But you can get the same answer quickly (saving you couple of seconds I guess ) if you focus on what's left after eating on Sunday and do times portion eaten.
3/4 x 1/2 x 2/3 = 1/4 answer
[Cancel 2 in numerator with 2 in denominator and similarly 3 with 3]
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- Posts: 2439
- Joined: Tue Jun 02, 2009 10:28 pm
Re: Chocolate fraction Question
That's easy, if you were me.
The answer would be All Of It!
The answer would be All Of It!
Re: Chocolate fraction Question
pheasantchick wrote:That's easy, if you were me.
The answer would be All Of It!
Re: Chocolate fraction Question
or maybe none - I was lying. I woofed the whole lot on Saturday.
Re: Chocolate fraction Question
Thanks for all the replies.. very useful.
The question was taken from a online paper for 11 plus
The question was taken from a online paper for 11 plus