Brain Teasers
Secret Ingredient
Mustapha Scratche, owner of the "Sweaty Chef Kebab Shop" was just about to weigh out the ingredients of his world famous "Colon disinfecting mega grease injection" kebab.
He needed to separate a 20 kg block of the secret ingredient into 2 kg blocks, but could only find a 5 kg and 9 kg weight.
Using a traditional balance scale, how could he measure out the ingredients precisely and as simply as possible?
He needed to separate a 20 kg block of the secret ingredient into 2 kg blocks, but could only find a 5 kg and 9 kg weight.
Using a traditional balance scale, how could he measure out the ingredients precisely and as simply as possible?
Answer
Using the 9 kg weight he can measure 9 kg from the 20 kg block. The remaining block of ingredients now weighs 11 kg. He then measures 9 kg from this to leave a 2 kg block. Finally, he can use this 2 kg block to measure and weigh all the rest into 2 kg blocks.Hide Answer Show Answer
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