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  1. The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was
    1. 45
    2. 50
    3. 55
    4. 60
Correct Option: C

Let Initial number of students in the class = N
According to the question,

N ×
120
 = 66
100

N =
66 × 100
 = 55
120


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