The ratio of the number of students in classes A, B and C is 3:7:8. If 10 students leave C and join B, the ratio of the number of students in B and C would be reversed. Find the total number of students in the classes A,B and C ?

The ratio of the number of students in classes A, B and C is 3:7:8. If

1.	The ratio of the number of students in classes A, B and C is 3:7:8. If 10 students leave C and join B, the ratio of the number of students in B and C would be reversed. Find the total number of students in the classes A,B and C ?
A.	144
B.	162
C.	180
D.	198
Answer» D. 198

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The ratio of the number of students in classes A, B and C is 3:7:8. If 10 students leave C and join B, the ratio of the number of students in B and C would be reversed. Find the total number of students in the classes A,B and C ?

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