Internal Transfer method

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Internal Transfer method

Postby cocolee » Sun Jan 15, 2012 4:52 pm

Ali has $32 and Abu has $22.How much must Ali give Abu so that Abu will have $12 more than Abu?Can somebody help me with the internal transfer method for this .

cocolee
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Re: Internal Transfer method

Postby MathIzzzFun » Mon Jan 16, 2012 6:38 am

cocolee wrote:Ali has $32 and Abu has $22.How much must Ali give Abu so that Abu will have $12 more than Abu?Can somebody help me with the internal transfer method for this .


Hi

I think the second sentence should be: "How much must Ali give Abu so that Abu will have $12 more than Ali?"

Total amount of money remained the same after Ali gave some money to Abu.

Total amount of money --> $ 54

In the end, Abu will have $ 12 more than Ali,
so, amount of money Ali will be left with --> $ (54- 12) / 2 = $21

$32 - $ 21 = $ 11
Ali must give $ 11 to Abu so that Abu will have $ 12 more than Ali

cheers.

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Re: Internal Transfer method

Postby cocolee » Tue Jan 17, 2012 9:40 pm

Hi
The question is the same, no change.Do you have any idea how to solve it?

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Re: Internal Transfer method

Postby MathIzzzFun » Tue Jan 17, 2012 10:20 pm

cocolee wrote:Hi
The question is the same, no change.Do you have any idea how to solve it?


Hi

as it is, the question: "Ali has $32 and Abu has $22.How much must Ali give Abu so that Abu will have $12 more than Abu?" is flawed because "so that Abu will have $12 more than Abu" is meaningless. if I have $100, and I get $10 more, I will have $110 so it is not possible for me to have any amount more or less than what I have at the same time unless I am referring to different time instances eg. "how much must Ali give to Abu so that Abu will have $12 more than what Abu had at first" is possible - just give Abu $12 more then he will have $12 more than what he had at first.


cheers.

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Re: Internal Transfer method

Postby cocolee » Sat Jan 21, 2012 9:15 pm

Hi

The question was a typo from the centre.
The question goes as
Ali has$32 and Abu has $22.How much money must Ali give Abu so that Abu will have $12 more than Ali?

The solution to this as given by the centre is
If Ali gives Abu some money so that Abu has $12 more than Ali
They have a total of 22+32=54
Ali(in the end)->(54-12)/2=21
Ali had $32 in begining
so Ali must give 32-21=11
Ali must give $11 to Abu so that Abu will have $12 more than Ali.

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Re: Internal Transfer method

Postby cocolee » Sat Jan 21, 2012 9:18 pm

Hi

Thanks MathIzzzFun for your answer.

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