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Sum of weights of 25 student = 25*60 = 1500 kg Sum of the weights of (25+x)(60+2x-7) = {(25+x)(53+2x)} kg As per the question (25+x)(53+2x)-1500 = 390 (25+x)(53+2x) = 1890 2x² + 103x – 565 = 0 X= 5 or (-113/2) Student since the number of student cannot be negative. So our answer will be 5.
The bends formed in the river when river water erodes its banks on the outside of the channel are known as:
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The value of
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