Mathematics, 30.03.2020 19:36 casrdunn1060
An eccentric professor used a unique way to measure time for a test lasting 15 minutes. She used just two hourglasses. One measured 7 minutes and the other 11 minutes. During the whole time she turned the hourglasses only 3 times. How did she measure the 15 minutes
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An eccentric professor used a unique way to measure time for a test lasting 15 minutes. She used jus...
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