Brain Teasers
Brain Teaser SMS
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An 18-wheeler is crossing a 4 kilometer bridge that can only support 10,000 kilograms and that’s exactly how much the rig weighs. Halfway across the bridge a 30 gram sparrow lands on the cab, but the bridge doesn’t collapse. Why not?
Answer: Since the bridge is 4 kilometers long, the halfway point would be 2 kilometers. The 18-wheeler would have used much more than 30g of fuel to drive 2 kilometers.
Brain Teaser SMS
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If:
2 3 = 10
7 2 = 63
6 5 = 66
8 4 = 96
9 7 = ??
Answer:
f(n,m) = (n + m) * n
e.g. f(2,3) = (2 + 3) * 2 = 10
Hence, f(9,7) = (9 + 7) * 9 = 144.
