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a man has some socks in his drawer 18 identical blue

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you are going to get grounded for a week if you don't get at least 80% in your science class.So far you have 237 out of the total 300 points. The final test in worth 100 points. What is the minimum score you need to get on the final test? Assume the teacher rounds properly in 1911, a french physicist Paul Langevin, devised a thought experiment based on Einstien's Special Relativity. In the experiment, a person makes a journey into space at narely the speed of light and comes back to the Earth. He Finds that he has aged five times less than his twin who stayed back on earth for 40years. This is popularly known as Twin Paradox. Now, consider the case of Hansel and Gretel, who are not twins. 9 years ago, Hansel was twice as old as Gretel. If they journey into space, an atomic clock assists in logging the start time of their journey accurately. If they do not journey into space, 9 years hence, Hansel's age will be 4 times the age of Greters. find Hansel's age today in binary numbers
a)11000 b)11011 c)1010 d)1001