Two vessels of different materials are similar in size in every respect. The same quantity of ice filled in them gets melted in 20 min and 35 min, respectivley. The ratio of coefficients of thermal conduction of the metals is (a) 4 : 7 (b) 7 : 4 (c) 25 : 16 (d) 16 : 25
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I think option n is the correct information
do brainlest me please
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