On their way to work, Andrew passes 15 sets of traffic lights and
Pauline passes 10 sets of traffic lights. One morning Andrew was
stopped by 12 red traffic lights. How many green traffic lights would
Pauline need to pass through to have the equivalent ratio of red to
green traffic lights as Andrew?
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Answer:
17 lights
Step-by-step explanation:
Andrew total traffic lights passed is 15+12 = 27
Pauline passes is already ten
then Paulin need to pass to equal for Andrew is 27- 10= 17
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