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Nairaland Forum / Entertainment / Forum Games / Brain Teaser: How Brilliant Are You (1437 Views)
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Brain Teaser: How Brilliant Are You by Nobody: 4:56pm On Sep 15, 2015 |
Oya, Lemme See how brilliant you are. There are two different ans to this brain teaser. I need both ans. Answer correctly $ stand a chance of winning sallah meat from me. ;DOya, Lemme See how brilliant you are. There are two different ans to this brain teaser. I need both ans. Answer correctly $ stand a chance of winning sallah meat from me Mods. FP Pls. CC: Obinoscopy, seun.
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Re: Brain Teaser: How Brilliant Are You by asumo12: 4:58pm On Sep 15, 2015 |
Re: Brain Teaser: How Brilliant Are You by galadima77(m): 5:11pm On Sep 15, 2015 |
27 Dog weighs 17kg, Rabbit 7kg and cat 3kg ok? 1 Like |
Re: Brain Teaser: How Brilliant Are You by Omotayor123(f): 5:16pm On Sep 15, 2015 |
booked. |
Re: Brain Teaser: How Brilliant Are You by Nobody: 11:37pm On Sep 15, 2015 |
galadima77: Math doesn't work dat way. U av to giv us step by step approach on how u got ur ans. Thanks |
Re: Brain Teaser: How Brilliant Are You by galadima77(m): 6:09am On Sep 16, 2015 |
ellad2k4eva:Let Dog be X, cat be Y and rabbiit Z. Y + Z = 10kg.........equation 1 X + Z = 20kg.........equation 2 X + Y = 24kg.........equation 3 Add up equations 1 and 2 Y + Z + X +Z = 10kg + 20kg Y + X + 2Z = 30kg.........equation 4 Now, substitute equation 3 into 4 where X + Y = 24 24 + 2Z = 30 2Z= 30 - 24 = 6 If 2Z = 6, then Z = 3 Now substitute 3 for Z in equations 1 and 2 respectively Y becomes 7 and X becomes 17 Thus, X + Y + Z = 3 + 7 + 17 = 27 3 Likes |
Re: Brain Teaser: How Brilliant Are You by Jdbrasco2: 9:22am On Sep 19, 2015 |
27 Just form d 4 eqtns relating their weights and substitute to get individual weights. Add the 3 weights to get the ans. |
Re: Brain Teaser: How Brilliant Are You by marvola(m): 10:04am On Sep 19, 2015 |
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Re: Brain Teaser: How Brilliant Are You by galadima77(m): 5:48am On Sep 29, 2015 |
ellad2k4eva: What do i get for displaying the steps? |
Re: Brain Teaser: How Brilliant Are You by jamace(m): 10:24am On Sep 29, 2015 |
galadima77:Oh, I love this. |
Re: Brain Teaser: How Brilliant Are You by success1smyn(m): 12:32am On Sep 30, 2015 |
if x=rabbit, y=cat and z=dog x+y=10 (1) x+z=20 (2) y+z=24 (3) From (1) x=10-y (4) Putting (4) in (2) we have 10-y+z=20 z-y=10 z=10+y (5) Putting (5) in (3) we have y+10+y=24 2y=14 y=7 Now putting y=7 in (4) & (5) x=3, z=17 x+y+z=27. 1 Like |
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