Color Focus

Algebra Level 2

There are 200 200 uncolored sticks in a sack. 1 4 \frac{1}{4} of them are colored blue \color{#3D99F6} {\text{blue}} , 1 3 \frac{1}{3} of the remaining uncolored sticks are colored black, 1 5 \frac{1}{5} of those still uncolored are colored red \color{#D61F06} {\text{red}} , and the rest are colored yellow \color{#CEBB00} {\text{yellow}} .

Now, 1 2 \frac{1}{2} of all of the sticks colored yellow \color{#CEBB00} {\text{yellow}} are colored red \color{#D61F06} {\text{red}} . What percentage (in %) of the sticks are now painted green \color{#20A900} {\text{green}} ?

15 50 20 0

Josh Speckman by Josh Speckman , 20, USA

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13 solutions

Josh Speckman
Dec 14, 2013

Sorry, but I wanted to make sure you guys were remembering to think about questions, so I had to write a problem to keep you awake. None of the sticks are green, so the answer is 0 \fbox{0}

4 Helpful 0 Interesting 0 Brilliant 0 Confused

the question is asking for yellow coloured sticks !!

Hemant Aggarwal - 7 years, 5 months ago

The wording is bad. "colored blue" could be the verb "colored", meaning that they are taken out of the sack and colored, with paint, blue... if you truly want to make a trick question like this, there should not be the word "colored" in the problem; it makes it ambiguous.

I realized that it was 0 at the start, but then decided that "colored" must have been a verb for the question to be practical, and so I tried the answer 20 before 0.

EDIT: Okay, now the problem has been revised and it is perfectly fine.

Ben Frankel - 7 years, 5 months ago

not 20%?

Haha Low - 7 years, 5 months ago

I was sitting here going like: "hmmmmmmmmmm this is a weird question...." before I answered.

A Former Brilliant Member - 7 years, 5 months ago

Pls stop giving these type of weird questions on Brilliant...this reduces my rating...

Amlan Mishra - 7 years, 3 months ago

i think that're some problem

Haha Low - 7 years, 5 months ago

rephrase the problem pls. thanks

Biboy Salvoza - 7 years, 5 months ago

red+yellow=green

Andrew Eduardo - 7 years, 4 months ago

Log in to reply

no sir infact its orange!

Mayankk Bhagat - 7 years, 4 months ago

orange

Chaitanya Lodha - 7 years, 3 months ago

Nice Josh!

Frodo Baggins - 7 years, 2 months ago

None of stick is painted green!!!!!!!!!

Saurav Sah - 7 years, 2 months ago
Tan Kiat
Dec 15, 2013

Erm... there is no green in the question?

Reason :

1.Red + Yellow = Orange and not green

2.There were no other mixture of colours.

3 Helpful 0 Interesting 0 Brilliant 0 Confused
Akshat Jain
Dec 15, 2013

That's obvious. The color Green is not used anywhere, that is, no sticks are colored Green. So percentage of Green color would obviously be 0% \fbox{0\%} .

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Muhammed Badr
Dec 17, 2013

the combination of Red and Yellow is Orange not Green :)

so there's no stick is painted with Green or Any color combinations

its 0%

1 Helpful 0 Interesting 0 Brilliant 0 Confused
DarkMind S.
Nov 27, 2016

Look Bozo, the fact that green was not mentioned does not logically imply that it cannot be assumed. The remaining 20 could have been green. That argument can work both ways. To those who marked 0 you can say that they are making unjustified assumptions !!

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Rifath Rahman
Jan 9, 2015

Green= Blue+Yellow not Red+Yellow,so answer is 0

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Funny problem.... the answer is zero...., neither green stick in the problem's text...., it is a read question...

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Josh Landweber
Mar 31, 2014

The only think you need to solve is to look at the names of the colors.

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Suryatej Thota
Mar 1, 2014

none of them were green

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Shikhar Jaiswal
Feb 16, 2014

joke of a question!

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Umang Somani
Jan 21, 2014

200 are uncoloured 1/4 are blue of 200 thus 200*1/4= 50 are blue

now, 150 remains in which 1/3 are black thus 150*1/3=50 are black so, 100 remains

of 100 1/5 are red so red are 100*1/5=20 so 80 left are yellow but 1/2 of 80 are red thus red are 40+20=60 so of 200 50 are blue and black,60 are red , 40 are yellow thus 0 remains

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Sanatan Samkalp
Dec 15, 2013

AS ALL THE STICKS ARE COLORED IN DIFFERENT PAINTS BUT NOT A SINGLE STICK IS COLORED GREEN

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Christian Lee
Dec 15, 2013

There was never any green sticks to begin with. Therefore, there will zero possible chance of picking a green stick.

The answer is 0.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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