Question

The number of students in class 'A' is 144, and the ratio of the number of girls to boys in class 'A' is 5:7. If the average number of boys in classes 'A' and 'B' is 174, and the average number of girls in classes 'A' and 'B' is 126, find the total number of students in class 'B'.

A 456
B 462
C 440
D 432
E 472
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