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Initially 1 m string is hanging and 3m is on the table. Now string start burning from both ends such that burning rate at A is 5 times that of B. Find the time when slipping occurs if burning rate at B is 20 cm/sec. 1) 0001 2) 0002 3) 0003 4) 0004


Initially 1 m string is hanging and 3m is on the table. Now string start burning from both ends such that burning rate at A is 5 times that of B. Find the time when slipping occurs if burning rate at B is 20 cm/sec.

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1)   0001
  2)   0002
  3)   0003
  4)   0004
 


Grade:10

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