Discussion
Kabir's rank is 27th from the top and 28th from the bottom. How many students are there in the class?
Answer: D
If Kabir is 27th from the top and 28th from the bottom, then 26 students are above him and 27 are below him. The class is made of those two groups together with Kabir himself, so the number of students is 26 + 1 + 27 = 54. The same result comes from the rule that the total equals the sum of the two ranks minus one, 27 + 28 - 1 = 54. The values 56 and 55 come from adding the ranks without subtracting Kabir's place twice, and 53 subtracts one place too many. The answer is 54, option (D).
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