Question

The students in three classes are in the ratio 5:3:2. If 40 students are
increased in each class, the ratio changes to 7:5:4. Originally the total
number of students was
(A) 100
(B) 200
(C) 300
(D) 400
16.​

Answer 1

Answer:

200 students

Step-by-step explanation:

original ratio=5:3:2

                    =10

new ratio=7:5:4

              =16

16-10=6 →represents the ratio number of students that increased

6=40×3=120students

so..... if 6=120students

           10=?

=10/6×120students=200 students

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