How long does a lorry 200 m long traveling at 80 kmph takes to cross a bridge of 200 m in length?\nOptions:\n(A) 15\n(B) 17\n(C) 15\n(D) 16\n(E) 18 Think first, then make a decision. Some random thoughts:
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D = 200 + 200 = 400 m\nS = 80 * 5/18 = 200/9\nT = 400 * 9/200 = 18 sec So the answer is (E).
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