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| Brain Teaser by Ayangba: 9:41pm On Jun 09, 2013 |
You saw a shirt for 17k. You don't have the cash, so you borrowed 10K from Mum and 10K Dad respectively = 20K. You bought the shirt and had 3K change. You gave Dad 1k and Mum 1k and you kept the other 1k for yourself. Now you owe Dad 9k and Mum 9k= 18k + your 1k =19k. Pls find the missing 1k. Please solve showing working for full marks |
| Re: Brain Teaser by Florena(f): 9:51pm On Jun 09, 2013 |
The 1k left wit u is nt 2 be added 2 d amount u still owe, it should be subtracted 4rm it. Assumin u ave given each of them 1500, then d amount u owe wil be 17k. |
| Re: Brain Teaser by iebanehita(m): 9:55pm On Jun 09, 2013 |
Ayangba: You saw a shirt for 17k. You don't have the cash, so you borrowed 10K from Mum and 10K Dad respectively = 20K. You bought the shirt and had 3K change. You gave Dad 1k and Mum 1k and you kept the other 1k for yourself. Now you owe Dad 9k and Mum 9k= 18k + your 1k =19k. Pls find the missing 1k. Please solve showing working for full marks To the bolded. Thats where the problem of double counting lies. You don't add what you OWE to what you OWN. Add YOUR remaining 1K to the 17K shirt you bought...,,and use it to settle your 18K outstanding debt. |
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