simple problem | Mathematics | Page 1

sour jetty Nov 28, 2023, 1:36 PM

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I know that this is simple, but I really can't solve it...

green graniteBOT Nov 28, 2023, 1:36 PM

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buoyant hornet Nov 28, 2023, 3:15 PM

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check this out

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basically t1+t2+t3 will do some amount of work in an hhour and the same of the second equation. Then you subtract and find the solution

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any doubts pls ping

sour jetty Nov 28, 2023, 3:58 PM

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why do you 1/21 - 1/24?

delicate finch Nov 28, 2023, 4:02 PM

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A recipe calls for 3 cups of flour and 2 cups of sugar to make a batch of cookies. If you want to make 60 cookies, how many cups of flour and sugar will you need?

sour jetty Nov 28, 2023, 4:18 PM

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delicate finch A recipe calls for 3 cups of flour and 2 cups of sugar to make a batch of cookie...

How many cookies are in the batch?

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I know right answer for this one and I know how to visualise the first step of solving, but I don't understand why I can 1/21 - 1/24

buoyant hornet Nov 28, 2023, 4:30 PM

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yea so basically its like a linear equation with 3 variables

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so we have x+y+z in a hour = 1/21

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we know x+z in a hour = 1/24

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what will y be

sour jetty Nov 28, 2023, 4:31 PM

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Oh.....

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I got it

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I'm not sure that I can explain it in my language, but anyway, thnks

buoyant hornet Nov 28, 2023, 4:32 PM

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np

sour jetty Nov 28, 2023, 4:36 PM

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.solved

green graniteBOT Nov 28, 2023, 4:36 PM

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Solved

Post marked as solved by @sour jetty.

Use .unsolved if this was a mistake.

#simple problem