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1. In a bag full of small balls, 1/4 of these balls are green, 1/8 are blue, 1/12 are yellow and the remaining 26 white. How many balls are blue?

 

2.In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the remaining 70 students are 12 years or older. How many students are 10 years old?

 

Help would be very much appreciated!~Hannah

 Apr 18, 2021
 #1
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from the total   x        (1  -  1/4  - 1/8  - 1/12) x  = 26

                                           13/24 x = 26

                                                x = 48 total marbles       1/8 are blue      1/8 * 48 = 6 blue ones

 Apr 18, 2021
 #2
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Did you check the question?

And thanks

 

~Hannah

Guest Apr 18, 2021
 #3
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What question?

ElectricPavlov  Apr 18, 2021
 #4
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The one where I asked you how old you were and you told me that I so young that I could be your granddaughter

 

~Hannah

Guest Apr 18, 2021
 #7
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From that picture it appears you can wait a LOT longer with no ill-effects !    LOL

ElectricPavlov  Apr 18, 2021
 #8
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Lol, yes I can but will you check?

Guest Apr 18, 2021
edited by Guest  Apr 18, 2021
 #9
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Yes?

No?

Maybe so?

~Hannah

Guest Apr 18, 2021
 #10
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This is a Math Forum....people go here to get help with math problems.  It really isn't set up as  a place for chatting back and forth, which clutters the site .  You should go look for a different forum for chatting with people.   G 'Luck !    smiley

ElectricPavlov  Apr 18, 2021
 #11
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D**m but little do you know I can't do that :/

 

~Hannah

Guest Apr 18, 2021
 #13
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Sorry..... but if you get an account here on web2.0     you can message people  directly without posting on the forum page......   

ElectricPavlov  Apr 18, 2021
 #5
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50% = 1/2

 

so we are counting    1/2 + 1/20  + 1/10    =  13/20 from the total

   ( 1 - 13/20 ) x   =  70 students

           7 /20  x = 70

       x = TOTAL students = 70 * 20 /7   = 200 students

 

1/20 are 10 y/o     1/20 * 200 = 10 students are 10 y/o

 Apr 18, 2021
 #6
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Thanks

 

~Hannah

Guest Apr 18, 2021
 #12
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If you want me to leave you alone just say it

~Hannah

 Apr 18, 2021
 #14
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You apparently think I have no tried that. Well, I have and when I try it wont send the email 

Sorry~Hannah

 Apr 18, 2021

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