Answer:
300%
Explanation:
d is 100% of itself. 3d is the same as d+d+d, so 3d would be 100%+100%+100% of d. Therefore, 3d is 300% of d.
I hope this helps!
Let x% of d be equal to 3d
Now,
(x/100) X d = 3d
x /100 = 3
x = 300
300% of d will be 3d!
