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2014-10-27T10:35:42+05:30

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1. distance covered by karan = x meter
raghav is 2m behind karan
distance covered by raghav= (x-2) meter
shekhar is 4m ahead karan
distance covered by shekhar = (x+4) meter

2. rita weighed 20kg on her last birthday
in one year,she put on x kg
her weight now = (20+x) kg

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