Daffodil International University
Science & Information Technology => Science Discussion Forum => Topic started by: jas_fluidm on April 11, 2013, 04:01:41 PM
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A parking lot contains 80 vehicles. Each vehicle is either a car or a truck, and each vehicle is either red or green. 35 vehicles are red, and 60 vehicles are cars. If there are 9 green trucks, how many red cars are there?
sol: 80-60=20
20-9=11
35-11=24
hence ans is 24.
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Interesting.