Problem

• Mar 19th 2009, 10:44 PM
Yeye
Problem
Got a problem here, if it doesn't make any sense then I probably misread it...

Tara makes X over Y money. James makes X - Y over Y money. Sara makes 2/3 the money Tara makes. If you pool their money together, how much do you have?
• Mar 20th 2009, 12:42 AM
Quote:

Originally Posted by Yeye
Got a problem here, if it doesn't make any sense then I probably misread it...

Tara makes X over Y money. James makes X - Y over Y money. Sara makes 2/3 the money Tara makes. If you pool their money together, how much do you have?

If I am not very wrong than

X is the profit Tara earns on investing Y amount of money

(X-Y) is the profit earned by James over the same amount of money

2X/3 is the profit earned by Sara for Y amount of money invested

The total money in the money we have in the end

= (Y + X)+ ((X-Y) +Y) + (2X/3 + Y) = 8X/3 + 2Y
• Mar 20th 2009, 03:59 AM
stapel
Quote:

Originally Posted by Yeye
Tara makes X over Y money. James makes X - Y over Y money. Sara makes 2/3 the money Tara makes. If you pool their money together, how much do you have?

Another possible interpretation is that the "(this) over (that)" statements indicate nothing more than fractions. If so, then:

Tara makes $(x/y). James makes$[(x-y)/y]. Sara makes 2/3 of Tara's amount, or $[(2/3)(x/y)] =$[(2x)/(3y)]. Their total is:

. . . . . $\frac{x}{y}\, +\, \frac{x\, -\, y}{y}\, +\, \frac{2x}{3y}\, =\, \frac{3x}{3y}\, +\, \frac{3x\, -\, 3y}{3y}\, +\, \frac{2x}{3y}\, =\, ...$

(Wink)
• Mar 20th 2009, 04:04 AM
Quote:

Originally Posted by stapel
Another possible interpretation is that the "(this) over (that)" statements indicate nothing more than fractions.

Do you think if they represented Sara's money by 2/3 they will not do so for others

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However the other interpretation can be that X over Y means that X is the amount after the profit has been added to initial amount(Thinking)
• Mar 20th 2009, 04:42 AM
stapel
Quote:

Do you think if they represented Sara's money by 2/3 they will not do so for others

Under the alternate interpretation, Sara's money wasn't "two-thirds of a dollar", but "two-thirds of Tara's dollars".

But, as has been demonstrated, other interpretations are possible. (Wink)