The students in three classes are in the ratio 2 : 3 : 5. If 20 studen – McqOptions

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1.	The students in three classes are in the ratio 2 : 3 : 5. If 20 students are increased in each class. The ratio changes to 4 : 5 : 7. The total number of students before the increase were ?
A.	10
B.	90
C.	100
D.	None of these
Answer» D. None of these

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