Correct option is B
Given:
Radhika's position from the top = 18
Radhika's position from the bottom = 32
Substitute these values into the formula:
Total number of students = Position from the top + Position from the bottom−1
Total number of students=18+32−1=49
So, the total number of students in the class is 49.
Thus, correct option is (b).
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