16、There are Train A and Train B going towards each other form two places; and they
meed in somewhere 15km away form the midpoint. Train A goes 55km per hour and Train B goes 50km per hour. How distant are the two places from each other?
17、Uncle Li and Uncle Wang raise 521 heads of cattle in total. 67% of the cattle raised
by Uncle Li are females while that among Uncle Wang is only reaches 1/13. So how many heads of cattle do they raise separately?
18、M/7 is a simplest proper fraction. If we add several number on its continuing digits
from the first digit behind the decimal point, and add them form left to right, after transforming it into a decimal, we got 2004. What is M？
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乐宁南外冲刺数学试卷
16、ThereareTrainAandTrainBgoingtowardseachotherformtwoplaces;andtheymeedinsomewhere15kmawayformthemidpoint.TrainAgoes55kmperhourandTrainBgoes50kmperhour.
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