The modified question went like this: Xiao Hong's little brother did a head count. The number of brothers he has is one more than the number of sisters he has. How many more brothers does Xiao Hong have, compared to Xiao Hong's sister?
The original question's answer was supposed to be three, but the original question did say that Xiao Hong was a girl. This question did not.
Yun Xiangxiang guessed that most people would ignore this part. Who said Xiao Hong must be a girl?
To answer this question correctly, one must consider two probabilities: Xiao Hong is a girl, and Xiao Hong is a boy.
It might look like a bonus question, but there were traps everywhere. From this question onward, there were no more easy questions.
When Yun Xiangxiang entered the calculations section after she finished the problem solving section, a voice rang, "Teacher, there's a problem with this question."
