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A group o man decided to do aich in 4 days but 20 man despedout every day the job was completred at the end of 7th day. Findtotal no. of man in group initially, |
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Answer» Let X be the initial number of men then,According to the question,4X = X + (X-20) + (X-40) + (X-60) + (X-80) + (X-100) + (X-120)4X = 7X-4203X = 420X = 420/3X = 140 men Therefore,Total number of men in group initially = 140 |
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