The big hand of the Big Ben clock weighs 1200 Ib, and the hour hand weighs 700 lb. What is the total weight of the hands?
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http://projecteureka.org/problem/question/761
..... can someone plzz explain why the answer isn't 1900 lb - 'cos I'll admit I'm stumped on this one, 'cos the last time I went to school (okay it was a long time ago), 1200 + 700 = 1900