Tuv ranked 27th from the top and 64th from the bottom in his class. How many students are there in his class?
90
When a single person's rank is given from both the top and the bottom, the total counts that person once extra, so total = (rank from top) + (rank from bottom) − 1.
Substitute the ranks: total = 27 + 64 − 1.
This gives total = 90.
Hence, there are 90 students in the class.
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A medical representative plans to visit each of six hospitals — A, B, C, D, E and F — exactly once during the course of one day. He is setting up his schedule for the day according to the following conditions:
i. He must visit A before B and E.
ii. He must visit B before D.
iii. The third hospital he visits must be C.
Which of the following could be the possible order in which the medical representative visits the six hospitals?Sonam is older than Renu. Komal is younger than Renu. Priya is older than Sonam. Who is the eldest of them?
