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  post #1  
Old 07-26-2008, 07:28 AM
lifeplayer lifeplayer is offline
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Default Maths question for primary school student but many people cant answer?
This is a maths question from primary school exam paper, see whether you can answer or not

Mr.A buy a toy with cost $18, he price it $21 for sell.
Mr.B buy the toy and give $100 to the boss,
Mr.A do not have changes, then he went to the next shop look for Mr.C and exchange the $100 to 10X$10. After that, Mr.A return $79 to the Mr.B.

After 1 hour, Mr.C tell Mr.A that the $100 is fake, Mr.A replace another $100 to Mr.C.

In this case, how much Mr.A loss?
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  post #2  
Old 07-26-2008, 11:18 AM
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I think it is 97$.
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  post #3  
Old 07-26-2008, 11:26 AM
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sorry, I hardly comprehend this problem.
But I think Mr. A did not loss anything...
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Old 07-26-2008, 12:24 PM
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Quote:
Originally Posted by lifeplayer View Post
This is a maths question from primary school exam paper, see whether you can answer or not

Mr.A buy a toy with cost $18, he price it $21 for sell.
Mr.B buy the toy and give $100 to the boss,
Mr.A do not have changes, then he went to the next shop look for Mr.C and exchange the $100 to 10X$10. After that, Mr.A return $79 to the Mr.B.

After 1 hour, Mr.C tell Mr.A that the $100 is fake, Mr.A replace another $100 to Mr.C.

In this case, how much Mr.A loss?
Yea. It's $79 + $18 = $97.
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Old 07-27-2008, 02:51 AM
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his $100 is fake so his loss $100, but he make profit $3
so his loss is $ 97
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Old 07-27-2008, 03:50 AM
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i think.. Mr A lost a total of 179..
he lost the 79 when he gave it to Mr B then a 100 when he gave to Mr C as a replacement..
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Old 07-27-2008, 04:05 AM
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oh yah.. i agree, its 97.. after analyzing again, he lost 97..
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Old 07-28-2008, 01:50 AM
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Quote:
Originally Posted by lifeplayer View Post
This is a maths question from primary school exam paper, see whether you can answer or not

Mr.A buy a toy with cost $18, he price it $21 for sell.
Mr.B buy the toy and give $100 to the boss,
Mr.A do not have changes, then he went to the next shop look for Mr.C and exchange the $100 to 10X$10. After that, Mr.A return $79 to the Mr.B.

After 1 hour, Mr.C tell Mr.A that the $100 is fake, Mr.A replace another $100 to Mr.C.

In this case, how much Mr.A loss?
Mr.A loss $197. Because he must replace the fake $100.
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Old 07-28-2008, 03:49 AM
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he lost $97

Real $100 minus $3 of the toy profit.
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  post #10  
Old 07-28-2008, 11:34 AM
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Quote:
Originally Posted by countel_telolis View Post
he lost $97

Real $100 minus $3 of the toy profit.
i agree, the other word is his initial $18+ additional money $79 to cover the refund.
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Old 07-28-2008, 03:52 PM
lifeplayer lifeplayer is offline
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Seem member here is clever enough.
Yes, the answer shall be $97 because he earn $3 by selling the toy but he loss $100 due to the fake money
$100-$97=$3
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Old 08-01-2008, 05:57 AM
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thats not a difficult question,every one knows the answer is $97.
case closed...heee...hee
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