Question: There was a total of 640 students at a school on Friday. Every student either walked or rode in a bus to the school. If 45 % of the total number of students walked to the school on Friday, how many of the students rode in a bus to the school?
A) 288
B) 352
C) 585
D) 595
Correct answer: B
Grade: 6 | Topic: Ratios and proportions | Difficulty: Medium | Standard: 6.RP.A.3a