Q. In a survey it is found that, 105 people take X brand pan masala, 130 takes Y brand and 145 take Z brand . If 70 people take X brand as well as Y brand , 75  takes Y brand as well as Z brand, 60 takes X brand as well as Z brand and 40 takes all three brands. Find how many people surveyed who take pan masala of any kind. How many takes Z brand only? AS a student what measures will you take to spread awareness against pan masala in society?

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