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let the no of students be x
each contribute as many rupees as the number of students so the money collected is x squared
additional money by one student is 2 rupees
so hence total collection is x to the power 2 +2=443
so x power 2=443-2=441
so x = root over of 441=21
so no of students =21(option b)
each contribute as many rupees as the number of students so the money collected is x squared
additional money by one student is 2 rupees
so hence total collection is x to the power 2 +2=443
so x power 2=443-2=441
so x = root over of 441=21
so no of students =21(option b)
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