Weare given the ratio of student getting an A to students getting a B as :
A : B = 1 : 2
If 22 students received an A , then the number of students that received a B (x) must be the answer to the following proportion that uses these ratios:
A / B = 1 / 2
22 / x = 1 / 2
we solve for x by crossmultiplying first:
22 * 2 = i * x
44 = x
So, the number of students getting a B is: 44