The sum of number of boys and girls in a school is 1150. If the number of boys is x, then the number of girls becomes x% of the total number of students. The number of boys is?  Choose the correct choice from the following choices.
A) 50
B) 40
C) 60
D) 92
E) 70

Rationale: "we have x + x % of 1150 = 1150 x + x / 100 * 1150 = 1150 25 / 2 * x = 1150 x = 1150 * 2 / 25 = 92 answer is d"
Answer: D