Correct option is D
Given:
Profit triples when SP is doubled.
Let CP = x, SP = y, and original profit = (y - x).
Formula Used:
Profit % = %
Solution:
New SP = 2y, new profit = 3(y - x).
Profit equation: 3(y - x) = 2y - x
3y - 3x = 2y - x
y = 2x.
Profit = y - x = x,
Profit % = = 100%.