Question: The ratio of the number of students in School A to School B is 5:7. If there are 210 students in School A, how many students are there in School B?
A) 280
B) 294
C) 300
D) 315
Solution:
Let the number of students in School A and School B be 5𝑥 and 7𝑥, respectively. Given that there are 210 students in School A:
5x=210
x = 210⁄5 = 42
The number of students in School B is:
7x=7×42=294
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