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Sunita is ranked 10th from the top and 18th from the bottom in her class. How many students are there in the class?
Question

Sunita is ranked 10th from the top and 18th from the bottom in her class. How many students are there in the class?

A.

30

B.

28

C.

29

D.

27

Correct option is D

Given:
· Sunita's rank from the top = 10th
· Sunita's rank from the bottom = 18th
The formula to find the total number of students when a student’s position from both the top and bottom is known is:
Total number of students=(Rank from top+Rank from bottom)−1
Calculation:
Total number of students=(10+18)−1=28−1=27
Correct Answer: (d) 27

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