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Q1.Find the cost price C of an article selling at S after a 30% loss.Answer=10S/7 Q2FIND the wages w earned by a worker in a month of 30 days ,given that he earns £ m per day and he was absent...

john's father starts off to drop john at his school 9.2 km away driving at 30 km/hr.After 4 minutes, jihn tells his father that he has to reach school in another 10 minutes.At what speed must john's...

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