It is pretty clear it is DS question, so no problem.
My answer is B, because according to condition 1, l > 2w let us say
l = 2w + x (wherw x is always positive and greater than 0)
perimeter is 2(3w + x) and this is true when the w, l values are 3, 35 and 5, 21 or 7,15
From condition 2, the only factors of 105 that satisfies the condition is 15*7
Hence answer B
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