My friend showed me this picture:
I did the math and I got 27.65 however my friend states it's 35, is one of us wrong? What would the correct answer be?
The way I received 27.65 as the answer is:
Purple hair (P): 2 * 15 = 30
White Shirt (W): (3.16228^2) + (3.16228^2) = 20
Black Shirt (B): 2 * 4 = 8
P + (W * B) = 15 + (3.16228*4) = 27.65
Sidenote, this is my first post here and I'm sorry if this was tagged in the wrong section, in this forum it says it's open to all levels, so if I tagged incorrectly will a moderator please move it to the correct location. Thank you.
The issue is the second line. I would agree with your friend that there are four girls on the left, so each counts $5$. Your reading that having two in a single frame means they should be multiplied seems somewhat strange, particularly as it leads to an irrational number. These problems are usually restricted to integers. There is no truly right answer unless one defines it as whatever the problem setter had in mind and I don't think your reading is crazy. If you are going to read it that way I wouldn't round off, I would report the result as $15+4\sqrt{10}$, which I think is another indication that it is not the intended answer.